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Math homework help

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Maths - Probability Problems

There are 24 families living in the Willbrook Farms Development. Of these families 12 prepared their own federal income taxes for last year, 7 had their taxes prepared by a local professional, and the remaining 5 by H&R Block. (a) What is the probability of selecting a family that prepared their own taxes? (Round your answers to 3 decimal places.) (b) What is the probability of selecting two families both of which prepared their own taxes? (Round your answers to 3 decimal places.) (c) What is the probability of selecting three families, all of which prepared their own taxes?

Statistics

1.       Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with a mean of 207 and a standard deviation of 17 d

Statistics

1.       Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with a mean of 207 and a standard deviation of 17 d

Statistics

1.       Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with a mean of 207 and a standard deviation of 17 d

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