In a statistic class,10 scores were randomly selected with the following results were obtained (mean = 71.5): 74,73,77,77,71,68,65,77,67,66 What is the range?
A)22.72
B)12.00
C)4.77
D)516.20
E)144.00

Question

Quizplus · Accepted Answer

To find the range, we subtract the smallest value from the largest value in the data set. In this case, the smallest value is 65 and the largest value is 77. 
Range = 77 - 65 = 12. Therefore, the best choice is B.

In a Statistic Class,10 Scores Were Randomly Selected with the Following