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OpenStudy (anonymous):
It is known that about 25% of residents in a large town exercise regularly. For a random sample of 4 residents from this town, let x denote the number of those who exercise regularly. 13. The mean and the standard deviation of x, are respectively, a) 0.25, 1.0 b)1, 0.87 c) 1, 0.75 d) 1, 1.0 e) none
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OpenStudy (clongoria2):
A.
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