Probability and Two-Way Tables

Question 1

Find P(B|C).

Revolt · Accepted Answer

P(B|C) = = 0.38

Question 2

Question 2

Revolt · Accepted Answer

0.59

Question 3

Question 3

Revolt · Accepted Answer

no

Question 4

Out of 106 total sophomores, there were forty-eight boys who received either an A, B, or C on their first math test. Out of the twenty-eight total A’s, sixteen girls received A’s. Out of the total fifty-four B’s, thirty girls received B’s. Twelve boys received a C out of the twenty-four total C’s on the test. Which two-way table represents this information?

Revolt · Accepted Answer

[Image: A 5-column table has 3 rows. The first column has ...]

Question 5

What is the probability that a randomly selected person who tested positive for the flu is vaccinated?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/EVresources/e6f4824dd8fdd27e5ada767aa95bddff.png

Question 6

Answer the questions to determine if events N and V independent. Round your answers to the nearest hundredth.

Revolt · Accepted Answer

0.62; 0.59; no

Question 7

Which statements are true? Check all that apply.

Revolt · Accepted Answer

Fourteen eleventh graders prefer math and eight tenth graders prefer English.; Twenty-three ninth graders and thirty-five twelfth graders prefer math.

Question 8

Use the information in the two-way table to complete the statement.

Revolt · Accepted Answer

✔ 82; The probability that a person has a positive Rh factor given that he/she has type O blood is percent.: 82; There is a greater probability for a person to have a than a person to have a positive Rh factor given type O blood.: positive Rh factor given type A blood

Question 9

Is Miguel’s claim correct?

Revolt · Accepted Answer

Yes, the two events are independent because P(NF|PB) = P(NF).

Question 10

Which statement is true?

Revolt · Accepted Answer

Event F for female and event D for drama are independent events.

Probability and Two-Way Tables Answers

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