P
Parvathi Reddy
Member
In Q1 of IAI may 2006, I am getting the answer for variance as 195.76 because I have used the formula (1/fi-1)(fi(xi squared) -n(mean squared )-which is given in the formula page at the end of the first chapter.Whereas in the indicative solutions, the answer is 189.56 because the division takes place only by ‘n’.
Please tell me which method is correct?
p.s- is the sigma sign
Please tell me which method is correct?
p.s- is the sigma sign