In a sample space S, the two events A,B are such that P(A) = .6, P(B) = .2, P((AN B)c) = .9. What is P(An B)? Ο ΡΑB) 6 O P(AN B) = .1 (answer) O P(AN B) = .12 Ο Ρ(An B ) -0 In a sample space S, the two events A,B are such that P(A) = .6, P(B) = .2, P((An B)°) = .9. The events A and B are: O Mutually Exclusive O Independent O Neither Mutually Exclusive nor Independent (answer) O Both Mutually Exclusive and Independent

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Consider the sample space for making random guesses on a 3 question true/false exam. {TTT   TTF   TFT   FTT   FFT   FTF   TFF   FFF} What is the probability that the list of random guesses will contain 2 "T" guesses and a single "F" guess?

A poll of 120 city residents found that 30 had visited the new museum, and that 80 had been to the new park. If it appeared that going to the park and going to the museum were independent events, how many of those polled had been to both? Park O 20 O 15 Museum Yes No Total Hint: P(went to park and went to museum) divided by total people surveyed O 10 Yes ?? No 80 40 Total 30 90 120 OIt cannot be determined.