Which of the followings are correct in case of normal distribution?
(A) Q1 + Q2 = 2Md
(B) \(\rm Q.D.=\frac{1}{3}\sigma \)
(C) \(\rm Q.D.=\frac{2}{3}\sigma \)
(D) All moments of odd order about mean are zero
(E) Q1 + Q2 = Md
Choose the correct answer from the options given below:
1
(B), (D) and (E) only
2
(A) and (D) only
3
(A), (C) and (D) only
4
(C), (D) and (E) only