Dr. Parikh has conducted a study that involves gathering data about her students' performance on an exam. She observes that some students did very poorly, while other students made no errors at all. This pattern of variation within her data set is referred to as the:______
a. arithmetic mean
b. measure of central tendency
c. Covariance
d. distribution
Explanation: A probability distribution is a mathematical model that relates a certain value of the variable under study to its probability of occurrence.
Dr. Parikh has conducted a study that involves gathering data about her students' performance on an exam. She observes that some students did very poorly, while other students made no errors at all. This pattern of variation within her data set is referred to as the ARITHMETIC MEAN. (A)
