alleryStart learning →What is the mean deviation about the mean of 3, 5, 7, 9, 11?
A3.2
B2.4
C7
D1.2
Answer & Solution
Correct answer: B. 2.4
The mean is 7 and the absolute deviations 4, 2, 0, 2, 4 total 12, so the mean deviation is 12/5 = 2.4.
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