## Question

###### The average number of calories in a 1.5 -ounce chocolate bar is $225 .$ Suppose that the distribution of calories is approximately normal with $\sigma=10 .$ Find the probability that a randomly selected chocolate bar will have a. Between 200 and 220 calories b. Less than 200 calories

The average number of calories in a 1.5 -ounce chocolate bar is $225 .$ Suppose that the distribution of calories is approximately normal with $\sigma=10 .$ 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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