In a sample of 800 students, the mean weight and standard deviation of weight are found to be 50 Kg and 20 Kg respectively. On the assumption of…

CA Foundation · Quantitative Aptitude · MTP · June 2024
In a sample of 800 students, the mean weight and standard deviation of weight are found to be 50 Kg and 20 Kg respectively. On the assumption of normality, what is the number of students weighing between 46 Kg and 62 Kg ? Given area of the standard normal curve between Z = 0 to Z = 0.20 = 0.0793 and area between Z = 0 to Z = 0.60 = 0.2257 :
(A) A. 250
(B) B. 244
(C) C. 240
(D) D. 260

Suggested Answer and Working Notes:

Correct Answer: Option (B)

B. 244

Topics: Part-C: Statistics

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