statistics MCQs – Page 23

Practise multiple-choice questions from statistics for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

statistics Mcqs

1. sample linear regression 2. normal distribution 3. presentation of data 4. statistical inference 5. measures of location 6. basic statistics 7. correlation and regression 8. sampling 9. binomial and hyper geometric probability 10. index number 11. hypothesis testing 12. measures of dispersion

441. The Laspeyres and Paasche index are examples of_________________?
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A. Weighted index numbers

B. Aggregate index numbers

C. Weighted price index only

D. Weighted quantity index only

442. The mean of hypergeometric distribution is:___________________?
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A. nN/k

B. Nk/N

C. N-k/n

D. n+k/N

443. 95% confidence limits u are ________________?
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A. x1.65 6/?n

B. 1.96 6/?n

C. u1.95 S/?n

D. x1.96 6/?n

444. A simple aggregate price index_____________?
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A. Compares relative quantities to relative prices

B. Compares relative quantities

C. Compares absolute prices to absolute quantities

D. Ignores relative quantities

445. Single number which shows ___________ changes in a phenomenon is called an Index Number?
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A. Capable

B. Same

C. Variation

D. Overall

446. In binomial distribution with ________ trials mean is np and variance is npq?
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A. Independent

B. Dependent

C. Linear

D. Equal

447. suppose for 40 observation, the variance is 50. If all the observation are increased by 20, the variance of these increased observation will be_________?
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A. 50/20

B. 50

C. 50-20=30

D. 70

448. The ratio of a new price to the base year price is called the___________?
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A. Price increase

B. Price absolute

C. Price decrease

D. Price relative

449. Let X1,X2,,Xn be a random sample from a density,,,, f(x ? ?) where ? is a value of the random variable ?with known density g?(?) Then the estimator ?(?) with/ respect to the prior g?(?) is define as______________E[?(?)?X1,X2,..,Xn] is called?
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A. Posterior Bays estimator

B. Sufficient estimator

C. Bays estimator

D. Minimax estimator

450. What is the mean of binomial distribution ____________?
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A. X

B. n x p

C. n(1 1)

D. ?fx/?f

451. In hypergeometric distribution, the trial are:_______________?
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A. Collectively Exhaustive

B. Dependent

C. None

D. Independent

452. If y= bx + c the range of y is ________?
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A. Quartile of X

B. Range of P

C. Range of x

D. Zero

453. The process of dividing a heterogeneous_____________?
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A. Random Sampling

B. Random digit

C. Cluster

D. Stratification

454. The frequency distribution mean > Median > Mode is called __________?
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A. One

B. Symmetrical

C. Negatively

D. +vely

455. 1 ? is the probability of_____________?
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A. Rejection Region

B. Type-II Error

C. Type-I error

D. Acceptance Region

456. Sampling errors are reduced by:___________________?
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A. Increasing population s.d.

B. Increasing the sample size

C. None of these

D. Decreasing the sample size

457. Range of 5,5,5,5, is ________________?
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A. 0

B. 25

C. None of these

D. 5

458. The Estimation and testing of hypothesis are main branches of ________________?
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A. Statistical Inference

B. Regression

C. Probability distribution

D. Sampling

459. if in a binomial probability distribution mean and variance are 6 and 2.4 respectively, then the parameters of this distribution are:____________________?
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A. n = 10, p = 3/5

B. n = 10, p = 2/5

C. n = 10, p = 6/10

D. n = 50, p = 6/50

460. Power of test is denoted by _______________?
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A. ?

B. (1 ? )

C. ?

D. (1 ?)

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