CA Foundation · Quantitative Aptitude · Measures of Central Tendency and Dispersion
The shoe sizes of nine customers who visited a Kanpur store in an hour were 6, 7, 8, 7, 9, 7, 6, 8 and 10. What is the modal shoe size?
The modal shoe size is 7, because the mode is the value occurring most often. Size 7 appears three times, while sizes 6 and 8 appear twice each and sizes 9 and 10 appear once, so 7 has the highest frequency.
- A6
- B7Correct
- C8
- D9
Explanation
Count each value: 6 appears twice, 7 three times, 8 twice, 9 once, 10 once. The value with the highest frequency (3) is 7. Sizes 6 and 8 occur only twice each, so they are not the mode.
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