A student scores the following marks in five subjects: 55, 62, 73, 81, 49. What is the mean score?
Answer
64
The correct answer is 64 — Divide the total by the number of subjects (5): 320 ÷ 5 = 64. The mean is the total score divided by the number of values.
Step-by-step solution
- Add all marks: 55+62+73+81+49 = 320. This gives the total score.
- Divide the total by the number of subjects (5): 320 ÷ 5 = 64. The mean is the total score divided by the number of values.
Common mistake: Forgetting to divide by the number of values
Concept tested: Mean of a dataset
Published · How this solution was prepared and checked
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