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Author Question: Which of the following is not necessarily true for independent events A and B? a. P(A and B) = ... (Read 43 times)

meagbuch

  • Hero Member
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  • Posts: 568
on: Jul 24, 2018
Which of the following is not necessarily true for independent events A and B?
 a. P(A and B) = P(A)P(B)
  b. P(AB)=P(A)
  c. P(BA)=P(B)
  d. P(A or B) = P(A) + P(B)

Question 2

In a past General Social Survey, 87 of a random sample of n = 990 respondents answered yes to the question Would you approve of an adult male punching a stranger if the stranger had broken into the man's house? A 95 confidence interval for the proportion of all Americans who approve of punching an intruder is
 a. 0.852 to 0.888
  b. 0.849 to 0.891
  c. 0.845 to 0.895
  d. 0.842 to 0.898


jennafosdick

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  • Posts: 345
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

B


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