In a class of 100 students, the mean marks was 50 with standard deviation 14.9. Assuming the distribution of marks to be normal, find the number of…

CA Foundation · Quantitative Aptitude · PYQS · September 2024
In a class of 100 students, the mean marks was 50 with standard deviation 14.9. Assuming the distribution of marks to be normal, find the number of students who obtained more than 70% marks [at Z = 1.34, area = 0.4099].
(A) A. 9
(B) B. 10
(C) C. 8
(D) D. 7

Suggested Answer and Working Notes:

Correct Answer: Option (A)

A. 9

Topics: Part-C: Statistics

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