Ques 1. While finding the variance we should be dividing sum of (X(i)-mean)^2 by n-1, but in the solutions it has been divided by n why? Answer should be (10000)^0.5 i.e 100 and not 99.5 pls help
When we have sample data for a population, then we divide by n-1 in calculation of variance. When the population data is directly available, then n is used in the denominator.
