# Probability

A card is selected from an ordinary deck of 52 cards. The probability that the card is a queen or a spade is what?

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= 4/52 + 13/52 - 1/5
= 16/52 = 4/13

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2. The probability that it's a queen would be 1/13, because there are 4 out of 52 cards in the deck that is a queen. 4/52 simplifies to 1/13.

The probability that it's a spade would be 1/4, because there are 13 spades out of the 52 cards in the deck. 13/52 reduces to 1/4.

=)

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bobpursley

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