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Mathematics 21 Online
OpenStudy (anonymous):

A card is chosen at random from a deck of 52 cards. What is the probability that a heart or spade is chosen?

OpenStudy (anonymous):

P(heart) + P(spade) - P(heart and spade)

OpenStudy (anonymous):

but P(heart and spade) = 0

OpenStudy (anonymous):

@sourwing im not really familiar with cards. So I'm not sure of how many hearts are in a deck or spades.

OpenStudy (anonymous):

13 hearts and 13 spade. Should go buy a deck of card. Only cost around $1 at walmart haha

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