# Question: The average number of calories in a 1 5 ounce chocolate bar

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

a. Between 200 and 220 calories

b. Less than 200 calories

a. Between 200 and 220 calories

b. Less than 200 calories

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