Understanding Number Sets - High School Math
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Question
If a card is drawn randomly from a regular shuffled 52 card deck, what is the probability that the card is either a spade or a 3?
If a card is drawn randomly from a regular shuffled 52 card deck, what is the probability that the card is either a spade or a 3?
Answer
How many cards in the deck are either a spade or a 3?
There are thirteen spades, including a 3 of spades.
There are four 3's, including a 3 of spades.
Since we are counting the same card (3 of spades) twice, there are actually
distinct cards that fit the criteria of being either a spade or a 3.
Since any of the 52 cards is equally likely to be drawn, the probability that it is a spade or a 3, is
How many cards in the deck are either a spade or a 3?
There are thirteen spades, including a 3 of spades.
There are four 3's, including a 3 of spades.
Since we are counting the same card (3 of spades) twice, there are actually
Since any of the 52 cards is equally likely to be drawn, the probability that it is a spade or a 3, is
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