Organizing and Summarizing Data To find the range of a set of scores, we calculate the
A)arithmetic average.
B)average squared deviation of scores about the mean.
C)difference between the highest and lowest scores.
D)square root of the average squared deviation of scores about the mean.

Question

Quizplus · Accepted Answer

Range is defined as the difference between the highest and lowest scores in a set of data. Therefore, the correct choice is C. The arithmetic average (A) is not used to find the range. The average squared deviation of scores about the mean (B) is used to find the variance, not the range. The square root of the average squared deviation of scores about the mean (D) is used to find the standard deviation, not the range.

Organizing and Summarizing Data to Find the Range of a Set