30.
31.
92.
33.
34.
35.
For a normal curve the Q.D, MD and SD are in the ratio:
(^) 6 ൯ 9
(0 0:4 (D) 10:12:15
If the variance of an estimator attains the C-R lower bound, the estimator is :
(^) Most efficient (B) Consistent
(C) Sufficient ൯) All of the above
For a random sample X,,X,,....X,, from 7)0, 20), the unbiased estimator of 0 is :
(A) Min X, (9) Max X,
© Min X, +Max X,) (9) त्र....
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