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Probability help?

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probabilities help?

Three cards are selected at random from a group of 7. Two of the cards have been marked with winning numbers.

a. what is the probability that exactly 1 of the 3 cards has a winning number?

b. what is the probability that at least 1 of the 3 cards has a winning number?

c.what is the probability that non of the 3 cards has a winning number?

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  1. 1.  The board of directors of ABC Inc. consists of 12 members, 3 of whom are women. A new policy and procedures manual is to be written for the company. A committee of 2 is randomly selected from the board to do the writing.
    a. What is the probability that all members of the committee are men?
    b. What is the probability that one member of the committee is a man?

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