Which of the following statements holds good for a normal distribution?
(A) The graph is a bell shaped curve.
(B) The top of the bell is directly above the mean.
(C) For large values of standard deviation, the curve tends to flatten out.
(D) For small values of standard deviation, the curve tends to flatten out.
1
(A), (B) and (D)
2
(A), (B) and (C)
3
(B), (C) and (D)
4
None of these