# math

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you are dealt two cards successively(without Placement)from a shuffled deck of 52 playing cards .find the probability that both cards are black .express your answer as a simplified fraction.

• math -

Theres 26 black cards in a deck of cards.

Half of the deck of cards will remain red/black.

1/2 of the cards are shown as black cards.

• math -

prob of first card black = 13/52
prob of second card also black = 12/51

so prob of 2 black cards
= (13/52)(12/51)
= 1/17

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