A population is created by throwing a fair die infinitely ma
     A population is created by throwing a fair die infinitely many times. Let the R.V. x = the # of spots showing on a throw.  What is the probability distribution of x?  Compute E(x) and Stdev(x)  Compute the mean of every possible sample of size two.  What is the probability distribution of x-bar?  Construct histograms of both x and x-bar  Compute the E(x) and Stndev(x-bar)  How do your results compare with the results in part b? 
  
  Solution

