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 6.55

55. X = the amount of money gained from Exercise 19

6.1.55

(a) 400,000,000 dollars squared (b) $20,000 (c) $50,000 is moderately unusual.