A Correlation Is Used to Understand

Multiple Choice

A correlation is used to understand:

A) the probability of a difference in means between either two independent samples or a paired sample through time.
B) the basic statistics, including the mean, standard deviation, minimums, and maximums of a data set.
C) the frequency of the data using a display of rectangles with area proportional to the underlying frequency of the data.
D) the extent to which variables are related to each other.