Multiple Choice
In a hearing test,subjects estimate the loudness (in decibels) of a 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:
Verified
Correct Answer:
Verified
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