# Question 9 08 out of 08 points two events a and b are

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Question 90.8 out of 0.8 pointsTwo events A and B are mutually exclusive. If P(A) = 0.21 and P(B)= 0.25, then P(A or B) =
Question 101 out of 1 pointsIf P(A) = 0.27, P(B) = 0.29, and P(A U B) = 0.48, then P(A | B) =
Question 110.8 out of 0.8 pointsYou pull two cards from a deck of cards. What is the probability that they both are Queens?
Question 120.8 out of 0.8 pointsWhat is P( 2 of Hearts | Number cards)? Note: Ace is considered to be a number card.
Question 130.8 out of 0.8 pointsAn automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that some packages were underweight and some were overweight, but most of them had satisfactory weight.What is the probability of selecting three packages that are overweight?Selected Answer:0.0004218Answers:0.00001560.00042180.00000010.075
Response Feedback:correctQuestion 140.8 out of 0.8 pointsIn a finance class, the final grade is based on three tests. Historically, the instructor tells the class that the joint probability of scoring "A"'s on the first two tests is 0.5. A student assigns a probability of 0.9 that she will get an "A" on the first test. What is the probability that the student will score an "A" on the second test given that she scored an "A" on the first test?
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Response Feedback:correct
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