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11'.) a lUflCll'lg vanaoie. Question 17 and 18. In a small Colombian village, 20% of the adults own a car, and 75% of the adults attend church regularly. 17. What is the probability that a randomly selected adult from this village owns a car and attends church regularly? A) 0.95 B) 0.55 C) 0.20 D) 0.15 E) 0.05 18. What is the probability that a randomly selected adult from this village does not own a car and does not attend church regularly? A) 0.95 B) 0.55 C) 0.20 D) 0.15 E) 0.05 19. Choose an adult woman at random. Here is the probability distribution for the number of children the woman chosen has had: Number of children 0 1 2 3 4 5 Probability 0.40 0.30 0.19 0.07 0.02 0.01 What is the expected value of the number of children a randomly chosen woman has had? A) 1.00 B) 1.02 C) 1.42 D) 2.27 E) 2.5 20. Choose an American household at random and ask how many televisions that household owns. Here are the probabilities as determined by a recent survey: Number of televisions 0 1 2 3 Probability 0.10 0.44 0.28 0.18 What is the expected number of televisions per household? A) 1 B) 1.44 C) 1.5 D) 1.54 E) 2