Friday
April 18, 2014

Homework Help: math

Posted by Kath on Wednesday, April 10, 2013 at 8:39pm.

The average number of calories in a 1.5 ounce chocolate bar is 225. Suppose that the distribution of calories is approximately normal with standard deviation =10. Find the probability that a randomly selected chocolate bar will have

a) Between 200 and 220 calories
b) Less than 200 calories

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