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May 25, 2015

Homework Help: science

Posted by suhad on Friday, February 22, 2013 at 7:06am.

The mean weight of 500 male students at a certain college is 151 pounds (lb), and the standard deviation is 15 lb. Assuming that the weights are normally distributed, find the probability of students weight
(a) between 121 and 155 lb
(b) more than 185 lb.
c) if 4% of the students are overweight, what is the minimum weight to classify student as over weight?

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