Consider the following regarding chi square distribution :
(A) It can be used for testing goodness of fit.
(B) It can be used to test the homogeneity of independent estimates of population correlation co-efficients.
(C) It can be used to test the homogeneity of independent estimates of the population variance.
Which option (s) is / are correct ?
1
Only (A) is correct.
2
Only (B) is correct.
3
Only (C) is correct.
4
All (A), (B) and (C) are correct.