21 Which of the following statements characterizes a strong

21. Which of the following statements characterizes a strong positive linear relationship best?

a) As X gets larger Y tends to get smaller and as X gets smaller Y tends to get larger.

b) As X gets larger Y tends to get larger and as X gets smaller Y tends to get smaller.

c) As X gets larger we cannot predict whether Y will be larger or smaller.

d) The correlation coefficient will be the same sign as the y-intercept.

e) The correlation coefficient will be near zero.

22. In a little-known Bulgarian dice game, two dice are thrown and the object of the game is to roll a four on at least one of the two dice, or a total of eight on both dice (the Bulgarians love it!) Find the probability of winning on any particular turn.

a) 14/36.

b) 15/36.

c) 16/36.

d) 17/36.

e) 18/36.

Solution