Posted by Michelle on Monday, May 16, 2011 at 5:20pm.
A history class has 75 members. If there is a 12% absentee rate per class meeting, find the mean, variance, and atandard deviation of the number of students who will be absent from each class

statistics  MathGuru, Monday, May 16, 2011 at 5:24pm
Mean = np = (75)(.12) = ?
Variance = npq = (75)(.12)(.88) = ?
(Note: q = 1  p)
Standard deviation = square root of the variance
I'll let you finish the calculations.

statistics  Sam, Monday, December 2, 2013 at 8:54pm
Mean=9
Variance=792
Standard Deviation=28.14
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