Problem-Solving and Data AnalysisEasyProbability of drawing a high card
Problem-Solving and Data Analysis practice question
A box holds 10 cards numbered 1 to 10. One card is drawn at random. What is the probability that the number on the card is greater than 7?
Answer: 3/10 or 0.3
The cards 8, 9, and 10 qualify: 3 out of 10.
Common wrong answers
- If you answered 3
- 3 is the count of qualifying cards, not a probability.
- If you answered 7/10
- 7/10 counts the cards 1 to 7 instead.
- If you answered 4/10
- 4/10 wrongly includes the 7.
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