In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are:
68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68

-What is the mean?
A)70
B)75
C)68
D)71
E)80

Question

In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are:
68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68

-What is the mean?
A)70
B)75
C)68
D)71
E)80

Quizplus · Accepted Answer

The mean is calculated by adding all the values together and then dividing by the number of values. The sum of the values is 770, and there are 11 values, so the mean is 770 / 11 = 70.

In a Hearing Test, Subjects Estimate the Loudness (In Decibels)