Problem-Solving and Data AnalysisEasy–MediumProbability of drawing an even-numbered card
Problem-Solving and Data Analysis practice question
Nine cards numbered 1 to 9 are shuffled, and one is drawn at random. What is the probability that the card shows an even number?
Answer: 4/9
2, 4, 6, and 8: four of nine cards.
Common wrong answers
- If you answered 5/9
- 5/9 is the probability of an odd number.
- If you answered 1/2
- 1/2 assumes equal numbers of odd and even cards.
- If you answered 4/8
- 4/8 uses 8 as the total.
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