4-5. The average number of calories in a 1.8-ounce chocolate bar is 230. Suppose that the distribution of calories is approximately normal with a standard deviation of 10. a. Find the probability that a randomly selected chocolate bar will have less than 200 calories. b. Find the probability that a randomly selected chocolate bar will have greater than 195 calories. c. What is the percentage that a cholate bar is randomly selected between 200 calories and 250 calories?

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4-5. The average number of calories in a 1.8-ounce chocolate bar is 230. Suppose that the
distribution of calories is approximately normal with a standard deviation of 10.
a. Find the probability that a randomly selected chocolate bar will have less than 200
calories.
b. Find the probability that a randomly selected chocolate bar will have greater than
195 calories.
c. What is the percentage that a cholate bar is randomly selected between 200 calories
and 250 calories?
Transcribed Image Text:4-5. The average number of calories in a 1.8-ounce chocolate bar is 230. Suppose that the distribution of calories is approximately normal with a standard deviation of 10. a. Find the probability that a randomly selected chocolate bar will have less than 200 calories. b. Find the probability that a randomly selected chocolate bar will have greater than 195 calories. c. What is the percentage that a cholate bar is randomly selected between 200 calories and 250 calories?
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