Question 3.182

69. Computational Formula for the Sample Variance and Standard Deviation. Refer to the previous exercise. Suppose a random sample of size from these teams yields the New York Yankees, the Tampa Bay Rays, and the Baltimore Orioles.

An alternative computational formula for the sample variance is as follows:

  1. Use the computational formula to find the sample variance for the number of wins.
  2. Use your result from (a) to find the sample standard deviation for the number of wins.
  3. Interpret your result from (b).

3.2.69

(a) 16.33 wins squared (b) 4.04 wins