Deck 19: Skewness and Kurtosis

Question 1

A kurtosis score of -.90 suggests that the data have a:

A)a distribution that is extended toward the low tail of a normal curve
B)less than 90 percent chance of being below the mean
C)a distribution that can be treated as normal
D)lower probability of occurrence than a score of +.90

Answer 1

C

Question 2

If a curve is positively skewed,its mode,median and mean should appear in this order:

A)the mean falls to the left of the mode and the mode falls to the right of the median
B)the median falls to the left of the mode and the mean falls to the left of the median
C)the median falls to the right of the mode and the mean falls to the right of the median
D)none of the above

Answer 2

C

Question 3

If a curve is negatively skewed:

A)the longest tail extends to the left
B)the data are normally distributed
C)the middle is not as high as a normal curve
D)the middle is higher than a normal curve

Answer 3

A