The american housing survey reported the following data on the   number of bedrooms in owner-occupied and renter occupied houses in central   cities, March 31, 2003):        Number of   Houses (1000s)   Bedrooms   Renter-Occupied Owner-Occupied   0 547 23     1 5012 541    2 6100 3832    3 2644 8690    4 or more   557 3783         A) Define a   random variable x= number of bedrooms in renter-occupied houses and   develop a   probability distribution for random variable. (Let x = 4 represent 4 or more   bedrooms).    B) Compute   the expected value and variance for the number of bedrooms in renter    occupied   houses.    C) Define a   random variable y= number of bedrooms in owner occupied houses and    develop[ a   probability distribution for the random variable. (Let y= 4 represent 4   or    bedrooms.)    D) Compute   the expected value and variance for the number of bedrooms in owner-    houses..