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If you select a card at random from a standard deck of 52 cards, what is the probability of selecting a red card, a black queen, and a 4 or a face card?

Sagot :

Aisinidn

There are 26 red cards and 26 black cards in a standard deck.

So, the probability of selecting a red card is 1/2.

There are 2 black queen in a standard deck : the queen of spades and the queen of clubs.

So, the probability of selecting a black queen is 2/52, or 1/26.

There are 4 of the 4 cards in a standard deck : 4 of spades, 4 of clubs, 4 of diamonds and 4 of hearts.

And, there are 12 face cards : jack, queen, king, each has spades, clubs, diamonds and hearts.

So, the probability of selecting a 4 or a face card is 16/52, or 4/13.

The probability of them all happening at the same time is : 4/13 x 1/26 x 1/2 = 4/676, or 1/169.

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