Compare the variation in heights to the variation in weights of ...

[jayhills49]

Compare the variation in heights to the variation in weights of thirteen-year old girls. The heights
  (in inches) and weights (in pounds) of nine randomly selected thirteen-year old girls are listed
  below.
 
  Heights (inches): 58.7 61.4 62.1 64.7 60.1 58.3 64.6 63.7 66.1
  Weights (pounds): 89 97 93 119 96 90 123 98 139
  A) Heights: 4.3
  Weights: 16.0
  There is substantially more variation in the weights than in the heights of the girls.
  B) Heights: 11.8
  Weights: 6.3
  There is substantially more variation in the heights than in the weights of the girls.
  C) Heights: 4.1
  Weights: 15.2
  There is substantially more variation in the weights than in the heights of the girls.
  D) Heights: 4.5
  Weights: 16.8
  There is substantially more variation in the weights than in the heights of the girls.

Question 2

Of 1232 people who came into a blood bank to give blood, 397 people had high blood pressure.
  Estimate the probability that the next person who comes in to give blood will have high blood
  pressure.
 
  A) 0.373 B) 0.241 C) 0.322 D) 0.29

[thall411]

Answer to Question 1

D

Answer to Question 2

C