Finding Outcomes

Question 1

What statements are correct? Check all that apply.The conditional probability formula is P(X │ Y) = .The conditional probabilities P(D │ N) and P(N │ D) are equal for any events D and N.The notation P(R │ S) indicates the probability of event R, given that event S has already occurred.Conditional probability applies only to independent events.Conditional probabilities can be calculated using a Venn diagram.

Revolt · Accepted Answer

A: The conditional probability formula is P(X │ Y) = .; C: The notation P(R │ S) indicates the probability of event R, given that event S has already occurred.; E: Conditional probabilities can be calculated using a Venn diagram.

Question 2

Given that a randomly chosen student participates in band, what is the probability that the student also participates in track?

Revolt · Accepted Answer

B:

Question 3

33/4733/6747/154✔ 80/154

Revolt · Accepted Answer

D: 80/154

Question 4

A dentist polls his patients and finds that 83 percent brush their teeth at least twice a day, 47 percent floss daily, and 19 percent brush at least twice a day and floss daily. What is the probability that a patient flosses daily, given that he or she brushes at least twice a day? Round to the nearest percent.

Revolt · Accepted Answer

B: 23%

Question 5

4/84/12✔ 8/12

Revolt · Accepted Answer

C: 8/12

Question 6

At a hospital, 56 percent of the babies born are not girls. Of the baby girls born, 12 percent are premature. What is the probability of a premature baby girl being born at this hospital? Round to the nearest percent.

Revolt · Accepted Answer

A: 5%

Question 7

Question 7

Revolt · Accepted Answer

12/35

Question 8

Question 8

Revolt · Accepted Answer

C

Question 9

Which conditional probabilities are correct? Check all that apply.

Revolt · Accepted Answer

A: P(D | F) =; B: P(E | D) =; D: P(F | E) =

Question 10

47/80✔ 47/8747/15480/154

Revolt · Accepted Answer

B: 47/87

Finding Outcomes Answers

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