Saundra collected a data set. She wanted to understand how spread out the scores were. What were the highest and lowest scores? Were the scores tightly concentrated? Saundra went to her psychology professor who told her that she should study up on ________________.
A) measures of central tendency
B) measures of parameters
C) measures of probability
D) measures of variability

Question

Quizplus · Accepted Answer

Saundra's goal of understanding the spread of her data set suggests that she should study measures of variability. These measures, such as the range, standard deviation, and variance, provide information about the distribution of scores and how much they differ from each other. Measures of central tendency (A) describe the typical or average score in a data set, while measures of parameters (B) are numerical values that describe a population. Measures of probability (C) relate to the likelihood of an event occurring.

Saundra Collected a Data Set