statistics
posted by Michelle .
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
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
Mean=9
Variance=792
Standard Deviation=28.14 
statistics 
Neydi
for the standard deviation, I do not get that answer.

statistics 
Derrius
Variance is supposed to be 7.92
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