Women's Volleyball Team Heights. Refer to Table 10 on page 126 for Exercises 79–81.

Question 3.192

79. Suppose a new player joins the NCU team. She is 7 feet tall (84 inches) and replaces the 72-inch-tall player.

  1. Would you expect the standard deviation to go up or down, and why?
  2. Now find the standard deviation for the team including the new player. Was your intuition correct?

3.2.79

(a) Increase because the contribution of a value of 84 to the computation is greater than the contribution of a value of 72. (b) 7.27; yes.