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The proportions of families with various numbers of children age 18 or under in a small town are given in the following table. One family

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The proportions of families with various numbers of children age 18 or under in a small town are given in the following table. One family is randomly selected from this town. X O 1 2 3 4 5 P(x) .10 .40 .13 .10 .22 05 Find the probability that the selected family has at least 3 children age 18 or under

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