Aspire's Library
A Place for Latest Exam wise Questions, Videos, Previous Year Papers,
Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
The mean and standard deviation of marks obtained by 50 students of a cl ass i n
three subjects physics, mathematics and chemistry are as follows:
Which of the subjects show the highest and lowest variabilities respectively?
Solution
Compare variability via coefficient of variation (CV) = SD / Mean. Math: $12/42 \approx 0.286$ Physics: $15/32 \approx 0.469$ Chemistry: $20/40.9 \approx 0.489$ Highest CV → Chemistry; Lowest CV → Mathematics. $\boxed{\text{Answer: (B) Chemistry, Mathematics}}$Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
Ask Your Question or Put Your Review.
