5 Problem # 5. The number of calories in a 1.5-ounce chocolate bar is 225. Suppose that the distribution of calories is normally distributed with the standard deviation o = 10. a) What is the probability that a randomly selected chocolate bar will have between 200 and 220 calories? Show all your steps. (5 points) Hint use the formula given on page 237 from the textbook for z-score and then use the z-table. b) What is the probability that a randomly selected chocolate bar will have less than 190 calories? Show all your steps. (5 points) Hint use the formula given on page 237 from the textbook for z-score and then use the z-table