Homework Help: statistics

Posted by Anonymous on Tuesday, October 5, 2010 at 2:09pm.

It has been reported that 83% of federal government employees use email. If a sample of 200 federal government employees is selected, find the mean, variance, and standard deviation of the number who use email.

statistics - MathGuru, Tuesday, October 5, 2010 at 8:52pm
mean = np
variance = npq
standard deviation = square root of the variance

n = 200
p = .83
q = 1 - p

I'll let you take it from here.

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