Statistics MCQS for NTS Set 1

For positively skewed binomial distribution

p > 0.5

p = 0.5

p = 0

p < 0.5

A binomial random variable can only assume the values

0, 1, 2……………………………….?

2,4,6,8,10

0, 1, 2,……….n

1,2……………..n

An estimator is a

Random variable

Constant

Parameter

Statistic

If b_yx < 0 and b_xy < 0 then “r”

0

¹ 0

<0

>0

Number of ways a committee of 3 members can be selected from 5 members of a club is

120

15

60

10

If ‘C’ is a non-random variable then E (C) is:

x

1

C

0

The variance of binomial distribution is:

None of these

np

nq

npq

The first moment about origin is equal to:

Mode

Standard deviation

Variance

Mean

In binomial experiment each trail has:

Two outcome

One outcome

Three outcome

Four outcome

In Mesokurtic distribustion

m₄ > 3s⁴

m₄ ¹ 3s⁴

m₄ = 3s⁴

m₄ < 3s⁴