Statistics: Measures of Central Tendency · Class 11 · CBSE · Commerce Economics
The values 10, 20, 30 and 40 have frequencies 2, 3, 4 and 1 respectively. What is their arithmetic mean?
Practice question from Statistics: Measures of Central Tendency (Class 11 · CBSE · Commerce Economics), with the correct answer and a step-by-step solution.
medium · MCQ · Q-036AE4
The values 10, 20, 30 and 40 have frequencies 2, 3, 4 and 1 respectively. What is their arithmetic mean?
- A.20
- B.22
- C.24Correct answer
- D.26
Solution
The total frequency is 10 and the sum of frequency-adjusted values is . Therefore, the mean is .
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