CA Foundation · Quantitative Aptitude · Measures of Central Tendency and Dispersion
The shoe sizes of nine customers who visited a Jaipur store in an hour were 6, 7, 8, 7, 9, 7, 8, 6 and 7. What is the modal shoe size?
The modal shoe size is 7, because the mode is the value occurring most often. Size 7 appears four times, while sizes 6 and 8 appear twice each and size 9 appears once, so 7 has the highest frequency.
- A6
- B7Correct
- C8
- D9
Explanation
Frequencies: size 6 occurs 2 times, 7 occurs 4 times, 8 occurs 2 times and 9 occurs once. The value with the highest frequency is 7, so the mode is 7. Size 8 is wrong because it occurs only twice.
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