Environmental Studies Short Question | Gkseries

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Question

In random samples of 64 boats out of a total 2400 boats, the mean number of defective boats is 3.2 with a sample standard deviation 0.8. The standard error of the mean is

A ~ 0.107
B ~ 0.40
C ~ 0.97
D ~ 0.097

Answer & Explanation

Answer:~ 0.097

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