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A pizza company advertises that it puts 0.5 pound of real mozzarella cheese on its medium sized pizzas. In fact, the amount of cheese on a randomly selected medium pizza is normally distributed with a mean value of 0.5 pound and a standard deviation of 0.025 pound.
a. What is the probability that the amount of cheese on a medium pizza is between 0.525 and 0.550 pound?
b. What is the probability that the amount of cheese on a medium pizza exceeds the mean value by more than 2 standard deviations?
c. What is the probability that three randomly selected medium pizzas each have at least 0.475 pound of cheese? |
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