A Professor has given assignment to students in a Statistics class. A student Jagan computes the arithmetic mean and standard deviation for a set of…
CA Foundation · Quantitative Aptitude · MTP · January 2026
A Professor has given assignment to students in a Statistics class. A student Jagan computes the arithmetic mean and standard deviation for a set of 100 observations as 50 and 5 respectively. Later on, Sonali points out to Jagan that he has made a mistake in taking one observation as 100 instead of 50. What would be the correct mean if the wrong observation is corrected?
Suggested Answer and Working Notes:
Correct Answer: Option (C)
C. 49.5
Topics: Part-A: Business Mathematics, Part-C: Statistics
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