Do not round intermediate calculations. Round your answers to two decimal places. a. Define a random variable number of times that owner-occupied units had a water supply stoppage lasting or more hours in the past months and develop a probability distribution for the random variable. (Let represent or more times.) 0.04 0.34 0.41 0.17 0.04 1 b. Compute the expected value and variance for . 1.82 c. Define a random variable number of times that renter-occupied units had a water supply stoppage lasting or more hours in the past months and develop a probability distribution for the random variable. (Let represent or more times.) 0 0.03 0.22 0.52 0.23 1 d. Compute the expected value and variance for . e. What observations can you make from a comparison of the number of water supply stoppages reported by owner-occupied units versus renter-occupied units