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Consider a deck of cards.What is the probability of drawing a heart card or a black card or  ace of diamonds?

Sagot :

Probability
Heart card & Black card - 13 / no.deck of cards
Because there are 13 cards in a set of hearts, diamonds, clover, and spade.
Ace of diamonds -1 / no. of cards in a deck
There are only one ace in a set of hearts, diamonds, clover, and spade.

I play cards and I know that. ;-)