Random Variables : Probability, Mean and Variance
Let the continuous r.v.X denote the weight (in pounds) of a package. The range of weight of the package is between 45 and 60 pounds.
(a) Determine the probability that a package weighs more than 50 pounds.
(b) Find the mean and the variance of the weight of packages.
HINT: Assume that X is uniformly distributed over (45, 60).