1.A distribution of scores where most are concentrated on the low end of the measure with fewer data points in the tail on the high end of the measure is best described as:

A)A normal distribution

B)A negatively skewed distribution

C)A bimodal distribution

D)A positively skewed distribution

2.Which of the following is a measure of variability?

A)Mean

B)Skewness

C)Mode

D)Standard deviation

3.True or False: The variance is the square root of the standard deviation.