A single card is selected at random from a standard deck of 52 playing cards. What is the probability of drawing a Heart or a Queen?
Answer and explanation
Correct answer: C.
- Step 1: Identify the probabilities and intersection: , . One card is both a Heart and a Queen (the Queen of Hearts), so .
- Step 2: Use the addition rule for non-mutually exclusive events: .
Answer
.
Why not the others: '' adds the probabilities without subtracting the overlapping Queen of Hearts; '' is only the probability of drawing a Queen; '' calculates .
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