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1. If a single card is drawn from an ordinary deck of cards, what is the probability of drawing either a heart or a 6? (Answer in a fraction).

2. The probability that federal income tax returns will have 0, 1, 2 errors is 0.53, 0.15 and 0.32 respectively. If 10 randomly selected returns are audited, what is the probability that six will have no errors, three will have one error and one will have two errors?

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Category:- Statistics and Probability
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