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January 27, 2015

January 27, 2015

Posted by **John** on Thursday, June 10, 2010 at 6:12pm.

- STATISTICS -
**MathGuru**, Thursday, June 10, 2010 at 9:29pmFor this type of problem:

mean = np = (12)(.25) = 3

standard deviation = √npq = √(12)(.25)(.75) = √(2.25) = 1.5

Note: q = 1 - p

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