## Answers

(1) **A, B, C , F, and H are correct**

E(1)=, here n=1, so A is true and variance(1)=,

E(2)=, here n=10, so B is true and variance(2)=/10

E(3)=, here n=2 so C is true and variance(3)=/2

since variance of 2 is less than variance of 1, so F is ture

but variance of 3 is not less than 2 so G is not true

here population distribution is not mentioned so it distribution of estimator may not be normal, so D and E are not true

(2) right choice is

variance(2)=/10, and

standard deviation=since this is repeated 100 times so required answer would be

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