Question: Consider Review Exercise 3.73 on page 128. It involved Y, the proportion of impurities in a batch, and the density function is given by 1

Consider Review Exercise 3.73 on page 128. It involved Y, the proportion of impurities in a batch, and the density function is given by 1

2 1 2 0 1 2 0 1 2 0 1 2 0 1 2 1. Find the expected percentage of impurities.

2. Find the expected value of the proportion of quality material

(i.e., find E(1 – Y)).

3. Find the variance of the random variable Z = 1 – Y.

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