statistic

You draw one card from a shuffled standard deck or cards (cards are in four suits-red diamonds, red heart, black clubs and black spades-and are numbered 2,3,4,5,6,7,8,9,10, J,O,K,A).

A.What is the probability of drawing a red card
B.What is the probability of drawing a queen
c. What is the probability of drawing a red queen.
d. What is the probability of drawing a queen given that you drew a face card (face card are jacks, queens, and kings).

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  1. A. 26/52 = ?

    B. How many queens are there? Divide by 52.

    C. How many red queens are there? Divide by 52.

    D. If the face card was replaced, no different from B.

    If not replaced, and queen drawn, 3/51. Or if queen not drawn, 4/51.

    Either-or probabilities are found by adding the individual probabilities.

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  2. I'm not sure about D.

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  3. thanks a bunch

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