Evelyn wants to know how consistent her bowling scores have been during the past season. Which of the following measures would be most relevant to this specific concern?

A) mean
B) median
C) standard deviation
D) correlation coefficient

Standard deviation measures the amount of variation or dispersion in a set of data. In this case, it would provide information about how consistent or inconsistent Evelyn's bowling scores have been throughout the season. Mean and median may provide information about the central tendency of the scores, but they do not provide information about consistency. The correlation coefficient measures the strength of a relationship between two variables and is not relevant in this situation as there is only one variable (bowling scores).