Tree diagrams are most useful for finding probabilities when a. ...

[audie]

Tree diagrams are most useful for finding probabilities when
 a. all of the events involved are independent.
  b. all of the events involved are mutually exclusive.
  c. each random circumstance has three or more possible outcomes.
  d. conditional probabilities are known in one direction, say P(AB) and you are trying to find them for the other direction, say P(BA).

Question 2

In a nationwide survey of n = 1,030 adults, 6 answered yes to the question During the last year did anyone break into or somehow illegally get into your home or apartment? A 98 confidence interval for the proportion of all Americans who had their homes broken into is
 a. 0.048 to 0.072
  b. 0.045 to 0.075
  c. 0.043 to 0.077
  d. 0.041 to 0.079

[millet]

Answer to Question 1

D

Answer to Question 2

C

[audie]

Excellent

[vickyvicksss]

Gracias!