402. In grouped data, the range is the difference between ________________?
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A. Two extreme class boundaries

B. Two extreme class frequency

C. None of these

D. Two extreme class limits

405. Binomial word discovered at the end of ________________?
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A. 17th century

B. 10th century

C. 12th century

D. 14th century

406. The correct variance is define as the __________________?
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A. S.D. of data h2/12

B. varies of data P2/6

C. M.D. of data h2/6

D. Variance of data h2/12
407. The hypergeometric probability distribution is used rather than the binomial or Poisson when the sampling is performed ?
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A. With out replacement from an infinite population

B. With replacement

C. With out replacement from a finite population

D. With replacement from a finite population

409. In binomial experiment successive trials are ______________?
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A. May be inependent or dependent

B. None of these

C. Independent

D. Dependent

411. If in binomial distribution p ? q, the distribution is:___________________?
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A. May be positive skewed or negative skewed.

B. None of these

C. Positively skewed

D. Negative skewed

412. If E(?)=?, then ? is said to be_______________?
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A. Efficient

B. Unbiased

C. Consistent

D. Sufficient

413. If third moment about mean is equal to zero, then distribution is ______________?
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A. positively skewed

B. Negatively skewed

C. None of these

D. Symmetrical
416. The successive trials are with replacement in:________________?
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A. Binomial distribution

B. Geometric distribution

C. Hpergeometric distribution

D. None of these

417. A set of jointly sufficient statistic is defined to be minimal sufficient if and only if_______________?
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A. It is a function of any sufficient statistics in the set.

B. It is a function of every other set of sufficient

C. It is not a function of every other set of sufficient statistics.

D. It is a function of some other set of sufficient statistics.

418. Variance of binomial distribution is always:______________?
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A. Less than mean

B. Less than equal to mean

C. Equal to mean

D. Greater than mean

419. The probability of success changes from trial to trial in:___________________?
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A. Hypergeometrical distribution

B. Geometric distribution

C. Binomial distribution

D. Sampling distribution

420. In a Wilcoxon Rank-Sum test__________________?
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A. Ties within one sample may affect the decision

B. Ties never affect the decision

C. Ties always affect the decision

D. Ties between the two sample may affect the decision

426. Parameter is a _________ quantity?
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A. Variable

B. All of above

C. Constant

D. Non of these

427. To perform a Runs test for randomness the data must be_______________?
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A. Qualitative

B. Divided into at least two classifications

C. Divided into exactly two classifications

D. Quantitative

428. ________ is the simplest means of dispersion?
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A. Standard deviation

B. C.V.

C. Variation

D. Range
429. The Laspeyres price index_____________?
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A. Regards the base year price as fixed

B. non of these

C. Regards the base year quantities as fixed

D. Regards the current year quantities as fixed

430. The Runs test results in rejecting the null hypothesis of randomness when______________?
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A. None of these

B. Either of the above

C. There is an unusually small number of runs

D. There is an unusually large number of runs

431. Absolute sum of deviations is minimum from _______________?
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A. Coefficient of variance

B. S.D. of x

C. Mean

D. Normal

433. Which of the following case is true for hyper geometric distribution________________?
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A. Probability remains constant for all the trials.

B. Probability changes from trial to trial

C. Successive trial are dependent

D. Both (b) & (c) but not (a)
437. ___________ is a value of sample statistics?
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A. Estimate

B. Numerical

C. Estimator

D. Probability

439. The critical value of a test statistic is determined from_____________?
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A. The sampling distribution of the statistics assuming Null Hypothesis

B. calculations based on many actual repetitions of the same Experiment

C. The sampling distribution of the statistic assuming Alternative Hypothesis.

D. Non of these

440. _________ is an estimate expressed by a single value?
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A. Point estimator

B. C.I.

C. Parameter

D. Point estimate
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

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
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