If two samples of size 30 and 20 have means as 55 and 60 and standard deviation 5 and 6 respectively then what would be the standard deviation of…
CA Foundation · Quantitative Aptitude · PYQS · January 2026
If two samples of size 30 and 20 have means as 55 and 60 and standard deviation 5 and 6 respectively then what would be the standard deviation of combined sample of size 50?
Suggested Answer and Working Notes:
Correct Answer: Option (A)
A. 5.95
Topics: Part-C: Statistics
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