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April 25, 2015

Homework Help: Statistics

Posted by Bill on Tuesday, March 26, 2013 at 8:55pm.

Assume the weights of men are normally distributed having a mean of 185 lbs and a standard deviation of 17 pounds.
A. Calculate the probability a randomly selected man weights less than 225 lbs
B. Approximately 72% of menís weights exceed how many pounds.
C. In a random example of 50 men, calculate the probability their mean weights is no more than 180 pounds.
D. In a random example of 50 men, approximately 8% of all possible menís weights will exceed how many pounds.

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