Question

The average test marks in a particular class is 79. The standard deviation is 5 . If the (06) marks are

distributed normally, how many students in a class of 200 did not receive marks between 75 and 82?

Given: P(c≤ ≤0.7)=0.2580, P(0≤ ≤0.8)=0.2881 P(0≤ ≤0.6)=0.2527, where Z is a standard normal

variate​

Answer 1

Answer:

i have not learnt it yet i will ans later