Mathematics, 29.05.2021 21:00 carolyvillanueva

A livestock cooperative reports that the mean weight of yearling Angus steers is 1144 pounds. Suppose that the weights of all such animals can be described by a Normal model with a standard deviation of 81 pounds. a) What percent of steers weigh over 1150 pounds?
b) What percent of steers weigh under 1200 pounds?
c) What percent of steers weigh between 950 and 1250 pounds?

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