Four red cards are numbered 1, 2, 3, and 4. Three black cards are numbered 5, 6, and 7. The cards
are placed in a box and one card is selected at random. What is the probability that a red card was
selected given that the number on the card was an even number?

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The Answer of Four red cards are numbered 1, 2, 3, and 4. Three black cards are numbered 5, 6, and 7. The cards
are placed in a box and one card is selected at random. What is the probability that a red card was
selected given that the number on the card was an even number?

Four Red Cards Are Numbered 1, 2, 3, and 4