1.Which of the following graphical methods can help you judge the normality assumptions of your data?

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