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What is the biserial correlation coefficient and the phi coefficient and the chi coefficient?
The biserial correlation coefficient is a measure of the strength and direction of the relationship between a continuous variable and a dichotomous variable. It is calculated when one variable is continuous and the other is dichotomous. The phi coefficient is a measure of association between two dichotomous variables. It is calculated using a 2x2 contingency table and ranges from -1 to 1, with 0 indicating no association and 1 indicating a perfect association. The chi coefficient is a measure of association between two dichotomous variables, similar to the phi coefficient. It is also calculated using a 2x2 contingency table and ranges from -1 to 1, with 0 indicating no association and 1 indicating a perfect association. **
Which correlation coefficient?
The correlation coefficient is a statistical measure that quantifies the strength and direction of a relationship between two variables. It ranges from -1 to 1, with -1 indicating a perfect negative correlation, 0 indicating no correlation, and 1 indicating a perfect positive correlation. The correlation coefficient is used to determine how closely the two variables are related and can help in making predictions or understanding the nature of the relationship between them. **
Similar search terms for Coefficient
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Arcwave Perk - prostate vibrator with remote control (black)The Arcwave Perk, with its two powerful We-Vibe motors, pampers the prostate and perineum at the same time and takes your hands completely out of the game - all controlled by a convenient remote.Why is the Arcwave Perk so good?Prostate stimulation opens up a new dimension of pleasure for many, but it can be hard to find a suitable, comfortable toy. The Perk’s flexible prostate plug sits precisely against the P-spot and stimulates it with deep, throbbing vibrations, while the outer arm massages the perineum. This dual, hands-free stimulation enhances orgasms both solo and with a partner, and the waterproof design means it can be used in the shower as well. Ten vibration patterns are available in ten intensities via the remote, and six patterns in four intensities directly on the toy. It’s recommended for those who want to explore prostate pleasure comfortably and hands-free.Why customers love the Arcwave PerkDual stimulation: prostate and perineum at the same time, with two powerful We-Vibe motorsCompletely hands-free: the flexible plug stays in place, leaving your hands freeConvenient remote control: no need to reach for the toy during play10 vibration modes with 10 intensity levels + 6 modes with 4 intensity levels on the toyWaterproof: can be used in the bath or showerVelvety-soft silicone surface for a pleasant feelRechargeable, with USB cable and storage pouch includedIdeal for both solo and partnered playWhat’s in the box1 Arcwave Perk anal vibrator1 remote control1 USB charging cable1 storage pouchProduct featuresColour: blackMaterial: silicone, ABSSize: 10.8 × 9.9 × 2.9 cmWeight: approx. 390 gMotors: 2 We-Vibe motorsModes: 10 modes / 10 intensities (remote), 6 modes / 4 intensities (toy)Water resistance: waterproofCharging: USB (cable included)How to useApply plenty of water-based lubricant, gently and patiently insert the prostate plug, then start the vibrations on a low setting. For anal use, generous lubrication is essential.ControlsThe modes and intensities can be changed using the remote control or directly via the button on the toy.ChargingCharge with the supplied USB cable, and fully charge it before first use.Things to bear in mind when using the Arcwave PerkFor anal use always use plenty of water-based lubricant; silicone-based lubricant will damage the silicone surfaceMove slowly and pay attention to your body’s signals - patience is key hereClean thoroughly before and after useThe remote’s range is limited; keep it nearbyUser manual150,19 £*Shipping: 0,00 £Secure redirect to the provider
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amika Perk Up Plus Extended Clean Dry Shampoo 232mlIn need of a wash day extension? This buildable dry shampoo from Amika revitalizes roots with scalp-friendly ingredients-boosting time (without any build up!) between wash days. WHO IT'S FOR Strands calling for shampoo 1-2x per week WHY IT'S SPECIAL Infused with good-for-scalp ingredients like mandelic acid + arrowroot powder, perk up plus extended clean dry shampoo allows you to go the distance between wash days with a lightweight, natural feel + finish. 94% said perk up plus extends time even further between washes than other dry shampoos.* Natural feel + finish: this lightweight formula leaves hair feeling clean, without a trace of residue or build up. infused with scalp-friendly ingredients like mandelic acid, rambutan seed extract, arrowroot powder + peptides. *based on feedback from a 2-week survey with 52 participants. Ingredients hydrofluorocarbon 152a, butane, alcohol denat. (sd alcohol 40-b), oryza sativa (rice) starch, pvp, maranta arundinacea (arrowroot) root powder, maltodextrin, zinc ricinoleate, mandelic acid, pentapeptide-3, nephelium lappaceum (rambutan) seed extract, hippophae rhamnoides (sea buckthorn) fruit/seed oil, arginine, water/aqua/eau, diisopropyl adipate, disteardimonium hectorite, propylene glycol, citric acid, citronellyl methylcrotonate, fragrance.28,00 £*Shipping: 0,00 £Secure redirect to the provider
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amika Perk Up Ultra Oil Control Dry Shampoo 250mlMeet the ultimate solution for extra-oily scalps - delivering a powerful clean between daily or every-other-day washes. This clinically proven formula provides long-lasting freshness with a dry, lightweight feel, leaving your hair as if it were just washed. In fact, 87% of users reported that Perk Up Ultra helps control oil.* Your perfect refresh is here. Clinically proven to absorb more oil than our original dry shampoo.** Revitalizes greasy strands with root-friendly ingredients like oil-absorbing tapioca starch, odor-neutralizing bamboo stem extract, and our signature superfruit, sea buckthorn. Created by popular demand - amika's community asked, and amika delivered a formula designed for even the oiliest scalps. *Clinically proven after one use. **Compared to our original Perk Up Dry Shampoo. Ingredients Hydrofluorocarbon 152a, Butane, Alcohol Denat. (SD Alcohol 40-B), Oryza Sativa (Rice) Starch, Silica, Tapioca Starch, Disteardimonium Hectorite, Bambusa Arundinacea (Bamboo) Stem Extract, Epilobium Angustifolium (Willow Herb) Flower/Leaf/Stem Extract, Hippophae Rhamnoides (Sea Buckthorn/Argousier) Fruit/Seed Oil, Glycerin, Diisopropyl Adipate, Water/Eau/Aqua, Citric Acid, Fragrance/Parfum, Benzyl Benzoate, Hydroxycitronellal, Limonene, Citronellol28,00 £*Shipping: 0,00 £Secure redirect to the provider
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Kin Bimat Children's Brush Promotion 2 x 1Health and Beauty Oral Care Kin Bimat Children's Brush Promotion 2 x 1 With a small and angled head, this toothbrush can easily reach hard-to-reach areas. With an ergonomic and grooved handle, it is very easy to handle. Comes up with a protecting cap. The bristles are soft and with rounded ends in order not to damage the gums. Its ergonomic and comfortable handle eases its use and make this toothbrush ideal to onset children into the importance of brushing teeth. Presentations: Blister 2X15,85 £*Shipping: 3,99 £Secure redirect to the provider
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What is the binomial coefficient?
The binomial coefficient, denoted as ${n \choose k}$, represents the number of ways to choose k elements from a set of n elements without regard to the order of selection. It is calculated using the formula ${n \choose k} = \frac{n!}{k!(n-k)!}$, where n! denotes the factorial of n. The binomial coefficient is commonly used in combinatorics and probability theory to calculate the number of combinations or possibilities in a given scenario. **
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What is the Lusor coefficient?
The Lusor coefficient is a measure of the ability of a fluid to carry sediment. It is used in the field of sediment transport to quantify the sediment-carrying capacity of a fluid, such as water or air. The coefficient takes into account factors such as the size and density of the sediment particles, as well as the velocity and viscosity of the fluid. A higher Lusor coefficient indicates a greater ability of the fluid to transport sediment. **
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What is the validity coefficient?
The validity coefficient is a statistical measure that quantifies the relationship between a predictor (such as a test or assessment) and a criterion (such as job performance or academic achievement). It indicates the degree to which the predictor is able to accurately predict the criterion. A higher validity coefficient suggests a stronger relationship between the predictor and the criterion, indicating that the predictor is more effective in predicting the criterion. Validity coefficients are commonly used in the field of psychometrics and are important for evaluating the effectiveness of selection tools and assessments. **
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What is a Gini coefficient?
A Gini coefficient is a measure of income inequality within a population. It is calculated based on the distribution of income or wealth among individuals or households in a given country or region. The coefficient ranges from 0 to 1, with 0 representing perfect equality (everyone has the same income) and 1 representing perfect inequality (one person has all the income). A higher Gini coefficient indicates greater income inequality, while a lower coefficient indicates more equal distribution of income. **
What is the multiplication coefficient?
The multiplication coefficient is a number that represents the factor by which a quantity is multiplied. It is used to scale or increase the value of a quantity by a certain amount. For example, if the multiplication coefficient is 2, then the quantity is doubled. The multiplication coefficient is often used in mathematical equations and calculations to represent the relationship between different quantities. **
How is the Gini coefficient calculated?
The Gini coefficient is calculated by plotting the cumulative distribution of income or wealth against the cumulative share of the population. The coefficient is then derived by dividing the area between the line of perfect equality (where everyone has the same income or wealth) and the actual distribution curve by the total area under the line of perfect equality. The resulting value ranges from 0 (perfect equality) to 1 (perfect inequality). **
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Amika Perk Up Dry Shampoo 322 mlHealth and Beauty Shampoos Amika Perk Up Dry Shampoo 322 ml What is Perk Up Dry Shampoo 322 ml? Perk Up Dry Shampoo 322ml is amika's dry shampoo, one of the brand's best-sellers. Sprayed onto the roots between washes, it absorbs oil, neutralizes odor, and restores body to limp hair. Its key difference lies in its base: instead of talc, it contains rice starch, leaving no white residue that can ruin the effect on dark hair. Benefits Gain a day or two between washes without anyone noticing. Rice starch absorbs oil from the roots, leaving a dry, full-bodied texture that also makes updos and braids easier: freshly washed hair slides smoothly, and this provides a secure hold. The brand states that 94% of those who tried it said their hair looked and felt refreshed, and that it is clinically proven to eliminate oil. Certified vegan and cruelty-free formula, talc-free, sulfate-free, paraben-free, phthalate-free, and mineral oil-free according to the manufacturer. Safe for use over color-treated hair and keratin treatments. Contains perfume and alcohol, with benzyl benzoate, citronellol, hydroxycitronellal, and limonene among the listed allergens. Flammable aerosol: Do not puncture or burn, even when empty. Who is it for? Suitable for all hair types, from 1 to 4c, and for anyone who wants to space out washes: busy mornings, after the gym, travel. It doesn't replace washing with water, it just postpones it. How to apply Perk Up Dry Shampoo 322 ml? Shake the container well. Spray about 20 cm from the root, with a sweeping motion. Wait 30 seconds. Massage the scalp as if it were shampoo and brush. Product use The 30-second wait is the part almost everyone skips, but it's what makes it work: it's the time the starch needs to absorb. Apply it in sections instead of spraying it all over, and don't leave it on for several days in a row without washing, because the buildup will eventually weigh down the roots.42,72 £*Shipping: 3,99 £Secure redirect to the provider
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amika Perk Up Dry Shampoo Travel Size 64mlPerk it up! This talc-free dry shampoo from Amika absorbs oil, reduces odour, and with an invisible finish, all while restoring 'oomph' to your locks. WHO IT'S FOR Strands calling for shampoo 3-4x per week... WHY IT'S SPECIAL - Infused with nutrient-rich sea buckthorn + natural rice starch (no talc!), perk up is the ultimate dry shampoo for a classic refresh between wash days. - #1 prestige dry shampoo in the US.* - 92% say perk up left hair smelling clean + refreshed.** - Invisible finish: the talc-free formula even leaves dark hair without a trace of white residue. - Absorbs oil + reduces odor: we ditched the standard aluminum starch for rice starch which helps to absorb oil. - Restores volume: brings flat hair back to life + provides a voluminous 'oomph' without feeling gritty. - Due to supply chain challenges, cap color may vary. *Circana, U.S. Prestige Beauty Total Measured Market, Hair Product Sales for 5.3oz size, 12 months ending December 2023 **based on consumer testing of 53 participants. Ingredients butane, propane, alcohol denat. (sd alcohol 40-b), oryza sativa (rice/riz) starch, fragrance/parfum, disteardimonium hectorite, diisopropyl adipate, hippophae rhamnoides (sea buckthorn/argousier) fruit/seed oil, benzyl benzoate, citronellol, hydroxycitronellal, limonene.13,00 £*Shipping: 2,95 £Secure redirect to the provider
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Arcwave Perk - prostate vibrator with remote control (black)The Arcwave Perk, with its two powerful We-Vibe motors, pampers the prostate and perineum at the same time and takes your hands completely out of the game - all controlled by a convenient remote.Why is the Arcwave Perk so good?Prostate stimulation opens up a new dimension of pleasure for many, but it can be hard to find a suitable, comfortable toy. The Perk’s flexible prostate plug sits precisely against the P-spot and stimulates it with deep, throbbing vibrations, while the outer arm massages the perineum. This dual, hands-free stimulation enhances orgasms both solo and with a partner, and the waterproof design means it can be used in the shower as well. Ten vibration patterns are available in ten intensities via the remote, and six patterns in four intensities directly on the toy. It’s recommended for those who want to explore prostate pleasure comfortably and hands-free.Why customers love the Arcwave PerkDual stimulation: prostate and perineum at the same time, with two powerful We-Vibe motorsCompletely hands-free: the flexible plug stays in place, leaving your hands freeConvenient remote control: no need to reach for the toy during play10 vibration modes with 10 intensity levels + 6 modes with 4 intensity levels on the toyWaterproof: can be used in the bath or showerVelvety-soft silicone surface for a pleasant feelRechargeable, with USB cable and storage pouch includedIdeal for both solo and partnered playWhat’s in the box1 Arcwave Perk anal vibrator1 remote control1 USB charging cable1 storage pouchProduct featuresColour: blackMaterial: silicone, ABSSize: 10.8 × 9.9 × 2.9 cmWeight: approx. 390 gMotors: 2 We-Vibe motorsModes: 10 modes / 10 intensities (remote), 6 modes / 4 intensities (toy)Water resistance: waterproofCharging: USB (cable included)How to useApply plenty of water-based lubricant, gently and patiently insert the prostate plug, then start the vibrations on a low setting. For anal use, generous lubrication is essential.ControlsThe modes and intensities can be changed using the remote control or directly via the button on the toy.ChargingCharge with the supplied USB cable, and fully charge it before first use.Things to bear in mind when using the Arcwave PerkFor anal use always use plenty of water-based lubricant; silicone-based lubricant will damage the silicone surfaceMove slowly and pay attention to your body’s signals - patience is key hereClean thoroughly before and after useThe remote’s range is limited; keep it nearbyUser manual150,19 £*Shipping: 0,00 £Secure redirect to the provider
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amika Perk Up Plus Extended Clean Dry Shampoo 232mlIn need of a wash day extension? This buildable dry shampoo from Amika revitalizes roots with scalp-friendly ingredients-boosting time (without any build up!) between wash days. WHO IT'S FOR Strands calling for shampoo 1-2x per week WHY IT'S SPECIAL Infused with good-for-scalp ingredients like mandelic acid + arrowroot powder, perk up plus extended clean dry shampoo allows you to go the distance between wash days with a lightweight, natural feel + finish. 94% said perk up plus extends time even further between washes than other dry shampoos.* Natural feel + finish: this lightweight formula leaves hair feeling clean, without a trace of residue or build up. infused with scalp-friendly ingredients like mandelic acid, rambutan seed extract, arrowroot powder + peptides. *based on feedback from a 2-week survey with 52 participants. Ingredients hydrofluorocarbon 152a, butane, alcohol denat. (sd alcohol 40-b), oryza sativa (rice) starch, pvp, maranta arundinacea (arrowroot) root powder, maltodextrin, zinc ricinoleate, mandelic acid, pentapeptide-3, nephelium lappaceum (rambutan) seed extract, hippophae rhamnoides (sea buckthorn) fruit/seed oil, arginine, water/aqua/eau, diisopropyl adipate, disteardimonium hectorite, propylene glycol, citric acid, citronellyl methylcrotonate, fragrance.28,00 £*Shipping: 0,00 £Secure redirect to the provider
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What is the biserial correlation coefficient and the phi coefficient and the chi coefficient?
The biserial correlation coefficient is a measure of the strength and direction of the relationship between a continuous variable and a dichotomous variable. It is calculated when one variable is continuous and the other is dichotomous. The phi coefficient is a measure of association between two dichotomous variables. It is calculated using a 2x2 contingency table and ranges from -1 to 1, with 0 indicating no association and 1 indicating a perfect association. The chi coefficient is a measure of association between two dichotomous variables, similar to the phi coefficient. It is also calculated using a 2x2 contingency table and ranges from -1 to 1, with 0 indicating no association and 1 indicating a perfect association. **
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Which correlation coefficient?
The correlation coefficient is a statistical measure that quantifies the strength and direction of a relationship between two variables. It ranges from -1 to 1, with -1 indicating a perfect negative correlation, 0 indicating no correlation, and 1 indicating a perfect positive correlation. The correlation coefficient is used to determine how closely the two variables are related and can help in making predictions or understanding the nature of the relationship between them. **
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What is the binomial coefficient?
The binomial coefficient, denoted as ${n \choose k}$, represents the number of ways to choose k elements from a set of n elements without regard to the order of selection. It is calculated using the formula ${n \choose k} = \frac{n!}{k!(n-k)!}$, where n! denotes the factorial of n. The binomial coefficient is commonly used in combinatorics and probability theory to calculate the number of combinations or possibilities in a given scenario. **
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What is the Lusor coefficient?
The Lusor coefficient is a measure of the ability of a fluid to carry sediment. It is used in the field of sediment transport to quantify the sediment-carrying capacity of a fluid, such as water or air. The coefficient takes into account factors such as the size and density of the sediment particles, as well as the velocity and viscosity of the fluid. A higher Lusor coefficient indicates a greater ability of the fluid to transport sediment. **
Similar search terms for Coefficient
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amika Perk Up Ultra Oil Control Dry Shampoo 250mlMeet the ultimate solution for extra-oily scalps - delivering a powerful clean between daily or every-other-day washes. This clinically proven formula provides long-lasting freshness with a dry, lightweight feel, leaving your hair as if it were just washed. In fact, 87% of users reported that Perk Up Ultra helps control oil.* Your perfect refresh is here. Clinically proven to absorb more oil than our original dry shampoo.** Revitalizes greasy strands with root-friendly ingredients like oil-absorbing tapioca starch, odor-neutralizing bamboo stem extract, and our signature superfruit, sea buckthorn. Created by popular demand - amika's community asked, and amika delivered a formula designed for even the oiliest scalps. *Clinically proven after one use. **Compared to our original Perk Up Dry Shampoo. Ingredients Hydrofluorocarbon 152a, Butane, Alcohol Denat. (SD Alcohol 40-B), Oryza Sativa (Rice) Starch, Silica, Tapioca Starch, Disteardimonium Hectorite, Bambusa Arundinacea (Bamboo) Stem Extract, Epilobium Angustifolium (Willow Herb) Flower/Leaf/Stem Extract, Hippophae Rhamnoides (Sea Buckthorn/Argousier) Fruit/Seed Oil, Glycerin, Diisopropyl Adipate, Water/Eau/Aqua, Citric Acid, Fragrance/Parfum, Benzyl Benzoate, Hydroxycitronellal, Limonene, Citronellol28,00 £*Shipping: 0,00 £Secure redirect to the provider
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Kin Bimat Children's Brush Promotion 2 x 1Health and Beauty Oral Care Kin Bimat Children's Brush Promotion 2 x 1 With a small and angled head, this toothbrush can easily reach hard-to-reach areas. With an ergonomic and grooved handle, it is very easy to handle. Comes up with a protecting cap. The bristles are soft and with rounded ends in order not to damage the gums. Its ergonomic and comfortable handle eases its use and make this toothbrush ideal to onset children into the importance of brushing teeth. Presentations: Blister 2X15,85 £*Shipping: 3,99 £Secure redirect to the provider
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Kin Junior Bimat Brush Promotion 2 x 1Health and Beauty Oral Care Kin Junior Bimat Brush Promotion 2 x 1 With rounded and polished bristles and small and angled head it reaches everywhere. Ergonomic and grooved handle for a a good grip. It comes up with a protective cap. The small and rounded bristles do not damage the gums. Ergonomic handle for an easy use. It is ideal for the intensive oral care of children aged 6 to 12. Presentations: Blister 2X15,85 £*Shipping: 3,99 £Secure redirect to the provider
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Uplift Essentials Tabletop Dry Erase Prize Wheel Spinner Tabletop Dry Erase Prize Wheel SpinnerBring highenergy excitement, friendly competition, and interactive fun to any event with this dynamic prize wheel. Designed with a smoothspinning acrylic face divided into vibrant rainbow color slots, this dryerase game wheel lets you customize...58,97 $*Shipping: 0,00 $Secure redirect to the provider
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What is the validity coefficient?
The validity coefficient is a statistical measure that quantifies the relationship between a predictor (such as a test or assessment) and a criterion (such as job performance or academic achievement). It indicates the degree to which the predictor is able to accurately predict the criterion. A higher validity coefficient suggests a stronger relationship between the predictor and the criterion, indicating that the predictor is more effective in predicting the criterion. Validity coefficients are commonly used in the field of psychometrics and are important for evaluating the effectiveness of selection tools and assessments. **
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What is a Gini coefficient?
A Gini coefficient is a measure of income inequality within a population. It is calculated based on the distribution of income or wealth among individuals or households in a given country or region. The coefficient ranges from 0 to 1, with 0 representing perfect equality (everyone has the same income) and 1 representing perfect inequality (one person has all the income). A higher Gini coefficient indicates greater income inequality, while a lower coefficient indicates more equal distribution of income. **
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What is the multiplication coefficient?
The multiplication coefficient is a number that represents the factor by which a quantity is multiplied. It is used to scale or increase the value of a quantity by a certain amount. For example, if the multiplication coefficient is 2, then the quantity is doubled. The multiplication coefficient is often used in mathematical equations and calculations to represent the relationship between different quantities. **
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How is the Gini coefficient calculated?
The Gini coefficient is calculated by plotting the cumulative distribution of income or wealth against the cumulative share of the population. The coefficient is then derived by dividing the area between the line of perfect equality (where everyone has the same income or wealth) and the actual distribution curve by the total area under the line of perfect equality. The resulting value ranges from 0 (perfect equality) to 1 (perfect inequality). **
* All prices are inclusive of VAT and, if applicable, plus shipping costs. The offer information is based on the details provided by the respective shop and is updated through automated processes. Real-time updates do not occur, so deviations can occur in individual cases. ** Note: Parts of this content were created by AI.