# math

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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 -

Time for one of my favourite wepsites

http://davidmlane.com/normal.html

just plug in

• math -

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 -

3023

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