(Answered) A study conducted by hersheys discovered that americans

Statistics

A study conducted by Hershey's discovered that Americans consumed an average of 11.4 pounds of chocolate per year. Let's assume that the annual chocolate consumption follows the normal distribution with a standard deviation of 3.6 pounds.

(a) What percentage of Americans consumes more than 9 pounds of chocolate per year?

(b) What percentage of Americans consumes between 8 and 12 pounds of chocolate per year?

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