MCQs4All - Statistics MCQs for NTS, FPSC, CSS, IELTS, TOEFL

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Question. Sum of dots when two dice are rolled is____________?

a discrete variable
a continuous variable
a constant
a qualitative variable

Question. In normal distribution Q.D. ( quartile deviation)is equal to________?

σ
0.7979 σ
0.6745 σ
None of these

Question. In which distribution successive trials are without replacement:____________________?

Hypergeometric distribution
Binomial distribution
Poisson distribution
Geometric distribution

Question. The equation of standard normal distribution is f(z)=________?

1/σ√2∏e 1/2×2
1/σ√2∏e -1/2×2
1/√2∏
1/σ√2∏

Question. The S.D. and variance are ____ of origine?

Multiplied
Variance
Change
Independent

Question. In a certain normal distribution having µ = 35 and variance = 16, then mode will be_______________?

3.5
16
4
None of these

Question. Quartile Coefficient of skewness lies between______________?

0 and 1
-1 and +1
-1 and 0
None of these

Question. In a binomial probability distribution it is impossible to find______________?

P(X < 0)
P(X = 0)
P(X > 0)
p(0 ≤ X≤ n)

Question. If the standard deviation of a population is 9, the population variance is_____________?

9
3
21
81

Question. Let X1,X2,…Xn be a random sample from the density f(x;(θ), where θ may be vector. If the conditional distribution of X1,X2,…Xn given S=s does not depend on θ for any value of s of S, then statistic is called?

Minimal sufficient statistic
Sufficient statistic
Efficient
Minimax statistics

Question. Statistics laws are true for______________?

Short run
Long run
Medium period
None of these

Question. If P(A/B)=1/4 and P(A∩B) =1/5 then P(B) is ________________?

4/5
1/20
0
1/9

Question. Sample variance S2 is unbiased estimator of population variance 26 because ________________?

E(S2) = s2
E(u) = X
E(P) = P
Ux = u

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