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

Question 16

Multiple Choice

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

-What is the variance?


A) 18
B) 4.73
C) 22.40
D) 324
E) 6.76

Correct Answer:

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