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

- math -
**Reiny**, Wednesday, April 10, 2013 at 9:09pm
Time for one of my favourite wepsites

http://davidmlane.com/normal.html

just plug in

- math -
**Anonymous**, Friday, November 4, 2016 at 11:11am
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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