Statistics MCQs

734 MCQs (Page 44 of 74)

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In a Poisson probability distribution __________________?

A. The mean and variance of the distribution are same (equal)
B. The probability of success is always greater than 5
C. The number of trials is always less than 5
D. It always contains a contingency table

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If in a coin P(H) = 2P(T) then prob. of head is ______________?

A. 1/3
B. 2/3
C. 1/2
D. 0

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The product of first ‘n’ natural numbers is _____________?

A. 1.2.3.4,………
B. 1.2.3……(n-2) (n-1) (n)
C. N. (n-1) (n-2)…………..3.2.1.0
D. None of these

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5C5 is equal to ________________?

A. 5
B. 5×5
C. 1
D. None of these

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. If the occurrence of one event means that another cannot happen, then the events are _______________?

A. Independent
B. Mutually exclusive
C. Bayesian
D. Empirical

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

A. 4/5
B. 1/20
C. 0
D. 1/9

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Type II error is committed when the null hypothesis is _________________?

A. Rejected when it is true
B. Rejected when it is false
C. Accepted when it is true
D. Accepted when it is false

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95% confidence limits for P are _________________?

A. P±2.18√p2q2/n
B. P±1.65(pq/n)
C. P±1.96 p2q2/√n
D. P±1.96√p2q2/n

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The hypothesis which is being tested is called ___________________?

A. Composite hypothesis
B. Alternative hypothesis
C. Null hypothesis
D. Simple hypothesis

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Sampling Error decrease by _______ the sample size?

A. Increase
B. Decrease
C. Sampling
D. Population

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