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

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

Quizplus · Accepted Answer

The range of a set of numbers is the difference between the highest and lowest numbers in the set. For the given scores, the highest score is 77 and the lowest score is 65. Therefore, the range is 77 - 65 = 12.

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