CA CPT Model Test Paper 13 with solutions for online practice

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 :