Probabilities using hyper geometric distribution

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Reference no: EM1319660

There are 20 families living in Will Development. Of these families 10 prepared their own federal income tax for lastyear, 7 had them prepared by a local professional, 3 by H&R Block.

a. What is probability of selecting a family that prepared own taxes?

b. What is probability of selecting two families which both prepared own taxes?

c. What is probability of selecting 3 families all prepared own taxes?

d. What is probability of selecting 2 families neither had taxes prepared by H&R Block?

Reference no: EM1319660

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