For a group of students, the sum of squares of differences in ranks for Maths and Physics marks are found to be 60, which is 120 times the value of…
CA Foundation · Quantitative Aptitude · PYQS · September 2025
For a group of students, the sum of squares of differences in ranks for Maths and Physics marks are found to be 60, which is 120 times the value of rank correlation coefficient. How many students are there in the group?
Suggested Answer and Working Notes:
Correct Answer: Option (C)
C. 9
Topics: Part-C: Statistics
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