Problem-Solving and Data AnalysisEasyProbability of not walking to school
Problem-Solving and Data Analysis practice question
Of the 25 pupils in a class, 10 walk to school. If one pupil is chosen at random, what is the probability that the pupil does not walk to school?
Answer: 3/5 or .6 or 0.6
15 of the 25 pupils do not walk, and 15/25 = 3/5.
Common wrong answers
- If you answered 15
- 15 is the count, not the probability.
- If you answered 2/5
- 2/5 is the probability that the pupil walks.
- If you answered 1/10
- 1/10 uses 10 as a denominator.
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