Cartes-fiches

Cartes-fiches 44 Cartes-fiches 1 Utilisateurs English Université 08.10.2017 / 29.10.2017 Non précisé
3 Réponses exactes 27 Réponses textes 14 Réponses à choix multiple

If data are spread out, the range, variance and standard deviation will decrease (T/F)?

F

If the data values are all the same, the range, vairance and standard deviation will be zero?(T/F)

T

All the range, variance, and standard deviation cannot be negative? (T/F)

T

Which of the following statistics is not a measure of central tendency? Mean Median Mode Variance

Which of the following statements about the median is NOT true? It is less affected by extreme values than the mean It is a measure of central tendency It is equal to variance it is the same to mode in bell-shaped distribution

In a perfectly shaped symmetrical distribution the range equals the variance the range equals the mean the mean equals the median the variance equals the standard deviation

Which one is a categorical variable? Temperature Salary Shoe brand Weight

Does a high correlation imply there is a
causality between two variables? (T/F) True False