For Exercises 53–60, do the following for the indicated random variable:

  1. Compute the variance of , .
  2. Calculate the standard deviation of , .
  3. Use the -score method to determine whether any outliers or unusual data values exist.

Question 6.53

53. X = the number of album downloads from Exercise 17

6.1.53

(a) 1.0964 CDs squared (b) 1.0471 CDs (c) No outliers or unusual data values.