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AORON Fashion Polarized Sunglasses Men Classic Sun Glasses PC Frame UV protection Eyewear for Men
Welcome to my store! Have a happy shopping! Description: Brand: AORON Lens material: TAC polarized lenses Frame material: PC Visible perspective rate: 99 (%) Anti-UV level: UV400 100% UV protection Whether polarized: Is polarized glasses Color: as the pictures show Frame width: 147mm Lens width: 54mm Lens height: 47mm Leg length: 140mm Nose bridge width: 18mm Package include: 1 pair of sunglasses Note: 1. There may be 1-2cm errors because of manual measurements. 2. Due to different displays and different lighting, the picture may not reflect the actual color of the item. Label: Yes
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Mens Polarized Photochromic sunglasses UV400 Pilot Sport Glasses Driving Eyewear
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Polarized Sports Men Sunglasses Fashion Riding Protection Goggles Eyewear Mountain Bike Bicycle Road Windshield Cycling Glasses
Welcome to my store! sincerely wishing you have a happy and satisified shopping Label: Yes Eyewear Type:Sunglasses Material: PC Lenses Material: PC Weight:0.031KG Length:149MM Lens width:44MM Model Gender:Men and woman Place Of Origin:China Note: Please allow 1-3mm differs due to manual measurement. Due to shooting reasons, the mirror of the actual product is bright, and the colors displayed in different light may be different, depending on the actual product received Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Packaging type: Bubble bag.
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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 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 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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Classic Square Men Polarized Sunglasses Sport Polarized Female Fashion Mirror
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Sport Cycling Glasses Bicycle Eyewear Mountain Bike Cycling Goggles Polarized Sunglasses white
Name: Sports Sunglasses Lenses Optical Attribute : UV400+Polarized+Photochromic Lenses Material : Polyurethane, TR-90 Suitable for running, riding, mountain driving Color: Black, Red, Blue, Yellow, White, Pink Size: 135mm Package includes: 1Pcs
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Fashion HD Lenses Polarized Sunglasses Googles Car Driver Eyewear UV Protection Gifts grey
Feature: To solve the problemg of the light Improvement of night driving! It can reduce the effectiveness of the beam main beam passes,It can reduce the intensity of the low beam and small lamp. The difference between the type of night vision goggles and other general eyewear is that; To maximize visibility while preventing dazzle / flashlight so as to clarify the vision. Clear your vision, eliminate the 99 percent light and scattered and reflected light,Soft HLC focus lens; To separate the effective treatment and the harmful UV rays,Protect your eyes, can be enhanced,Not broken, the impact resistance. Complex technology away; Polarizing filter layer on both sides of the lens ,UV400 is a protective film core module Search for all of the harmful UVA / UVB rays are blocked. Strengthening of the layers prevent various hard lenses's damage effectively ,he impact strength of the lens It's an ideal contrast glasses for night driving glare. Color: Yellow, grey,light brown Frame Material: Plastic Lens Material: PC anti-explosion material Package Contents: 1 Night vision goggles Label: yes Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.
Price: 3.19 € | Shipping*: 0.0 €
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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 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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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 quadratic temperature coefficient?
The quadratic temperature coefficient is a measure of how a material's resistance changes with temperature. It describes the rate at which the resistance of a material changes as the temperature changes. The coefficient is used to characterize the temperature dependence of a material's resistance in a quadratic manner, meaning the resistance changes with the square of the temperature difference. A positive coefficient indicates that the resistance increases with temperature, while a negative coefficient indicates that the resistance decreases with temperature.
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