statistics MCQs – Page 28

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 Review each marked answer and report any item that may be outdated or unclear.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

541. A random variable X has binomial distribution with n = 10 and p = 0.3 then variance of X is:_____________________?
0

A. 21

B. None

C. 2.1

D. 10

E. 12

542. A binomial random variable can assume values from _________ to n?
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A. 6

B. 0

C. 2

D. 3

543. For a population consisting of 4 members, a sample of size 2 is taken replacement, then the number of all the possible samples are?
0

A. 4

B. 8

C. 16

D. 32

544. Which of the following test is most likely assessing this null hypothesis: Ho The number of violations per apartment in the population of all city apartments is binomially distributed with a probability of success in any one trial of P=0.3 dd ?
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A. The Kruskal-Wallis test

B. The Kolmogorove-Simirnor test

C. The Mann-Whitney test

D. The Wilcoxon Signed Rank test

545. Which of the following is an assumption underlying the use of the t-distribution ?
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A. The sample are drawn from a normally distributed population.

B. The variance of the population is known

C. All above

D. s (sample standard deviation) is an unbiased estimate of the population variance.

546. Each trial in Binomial distribution has:_________________?
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A. Two Outcome

B. Three Outcome

C. One Outcome

D. Four Outcome

547. Which of the following is simple hypothesis___________________?
0

A. u = 20

B. u ? 20

C. u 20

548. We use non parametric tests when the data is_________?
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A. Qualitative

B. Ranked

C. Both a and b

D. None of these

549. Which sampling method we will apply if there is no sampling frame?
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A. Stratified sampling

B. Simple random sampling

C. Systematic sampling

D. Cluster sampling

550. The value maximum ordinate of a standard normal curve at Z = 0 is:________?
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A. 1

B. 0.5

C. 0.3989

D. None of these

551. Median is _______ than mean is a positive skewed distribution?
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A. Great

B. lesser

C. Equal

D. None of these

552. Which hypothesis tell us weather test is one tail or 2 tail?
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A. simple hypothesis

B. all of the above

C. None of these

D. null hypothesis

553. Combine mean calculated by different given mean is ________?
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A. n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4

B. n1x1 + n2x2x + _____ nuxu/n1 + n2 + ___+ nu

C. n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu

D. ?n1x/x1

554. The lower and upper quartile of standard normal variation are respectively ?
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A. -0.7979? and 0.7979?

B. +0.6745? and -0.6745?

C. -0.7979 and 0.7979

D. -0.6745 and 0.6745

555. Which test is better than sign test?
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A. Mann Witney U test

B. Wilcoxon rank sum test

C. Wilcoxon signed rank test

D. All the above

556. In Normal distribution, the parameter which controls the flatness of the curve is____________?
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A. ,?

B. , MD

C. None

D. 2??,e

557. Sampling error cannot occur in__________?
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A. Census

B. None of these

C. Survey

D. Sampling

558. The sum of deviations of observations is zero, when deviations are taken from __________?
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A. Mode

B. Median

C. Mean

D. None of these

559. Confidence interval is a measure of?
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A. Accuracy

B. All of above

C. Error

D. Precision

560. Who is considered the Father of Modern Statistics?
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A. John Tukey

B. Ronald Fisher

C. W. Edwards Deming

D. Florence Nightingale

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