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2) The amount of flour used per day by a bakery is a random variable Y that has an exponential distribution with mean equal to 4 tons.

2) The amount of flour used per day by a bakery is a random variable Y
that has an exponential distribution with mean equal to 4 tons. The
cost of the flour is proportional to U=3Y+1
a) Find the probability density function for U. (using method of
distribution)
b) Use the answer in a) to find E(U)

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