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_____________Quiz____________? Consider the two-way table below. C D Total A 15 21 36 B 9 25 34 Total 24 46 70 Find P(B|C). -
Answer ✓✓
B:
P(B|C) = 9/24 = 0.
_____________Quiz____________? 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? -
Answer ✓✓
B:
A B C Total
Boys: 12 24 12 48 Girls: 16 30 12 58 Total: 28 54 24 106 _____________Quiz____________? The two-way table shows the results of a recent study on the effectiveness of the flu vaccine. Pos. Neg. Total Vaccinated 465 771 1, Not Vaccinated 485 600 1, Total 950 1,371 2, What is the probability that a randomly selected person who tested positive for the flu is vaccinated? -
Answer ✓✓
C:
_____________Quiz____________? The two-way table shows the results of a recent study on the effectiveness of the flu vaccine. Let N be the event that a person tested negative for the flu, and let V be the event that the person was vaccinated. Pos. Neg. Total Vaccinated: 465 771 1, Not Vaccinated: 485 600 1, Total: 950 1,371 2, Answer the questions to determine if events N and V independent. Round your answers to the nearest hundredth.
A B AB O Total: Neg: .07 .02 .01 .08. Pos: .33 .09 .03 .37. Total: .40 .11 .04 .45 1. Use the information in the two-way table to complete the statement. The probability that a person has a positive Rh factor given that he/she has type O blood is ________% There is a greater probability for a person to have a ______________ than a person to have a positive Rh factor given type O blood. -
Answer ✓✓
positive Rh factor given type A blood _____________Quiz____________? The two-way table shows the distribution of book style to genre. Miguel claims that given that the book is paperback (PB) does not affect the outcome that the book is nonfiction (NF). Fiction Non-Fiction Total Paperback: 20 60 80 Hardcover: 10 30 40 Total: 30 90 120 Is Miguel's claim correct? -
Answer ✓✓
A:
Yes, the two events are independent because P(NF|PB) = P(NF).
_____________Quiz____________? The two-way table shows the distribution of gender to favorite film genre for the senior class at Mt. Rose High School. Comedy Horror Drama Action Total M: 36 16 16 28 96 F: 54 22 24 44 144 Total: 90 38 40 72 240 Which statement is true? -
Answer ✓✓
B:
Event F for female and event D for drama are independent events. _____________Quiz____________? Brown Law Firm collected data on the transportation choices of its employees for their morning commute. The table shows the percentages of the type of transportation of the male and female employees. Public Own Other Total Male: 12 20 4 36 Female: 8 10 6 24 Total: 20 30 10 60 Consider the following events: A: The employee is male. B: The employee is female. C: The employee takes public transportation. D: The employee takes his/her own transportation.
