1351. Standard deviation is always calculated from _____________?
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A. G.M.

B. Mean

C. Mode

D. Median

1352. If y = bx + a the mean deviation of y is_____________?
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A. M.D.of x

B. S.D. of x

C. S.D. of y

D. var (x)

1353. which is poor measure of dispersion in open-end distribution ________________?
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A. Range

B. None of these

C. Semi-inter quartile range

D. Quartile- deviation

1354. Absolute sum of deviations is minimum from _______________?
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A. Mean

B. S.D. of x

C. Normal

D. Coefficient of variance

1355. The sum of powers of deviation from mean is zero is called __________?
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A. Normal

B. Lack

C. Mean

D. Skewed

1356. The degree to which numerical data tend to spread about an average value is a________________?
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A. Dispersion

B. Range

C. Minimum

D. variance

1357. If Y=-8X 5 and SD of X is 3, then SD of Y is______________?
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A. 24

B. 3

C. 8

D. None of these

1358. Mean deviation is always ________________?
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A. Negative

B. More than S.D.

C. Less than S.D.

D. Equal to S.D.

1359. The value of interval x S include _______________?
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A. 68.27%

B. 99.73%

C. 95.45%

D. 49.45%

1360. If all values are same then the measure of dispersion will be?
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A. Median

B. Mode

C. Mean

D. 1

E. 0
1361. Second moment about mean is always equal to _____________?
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A. S.D.

B. Square

C. Variance

D. C.V.

1362. The A.M. is greater than mode is equal to ______________?
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A. Negatively

B. zero

C. Skewness

D. +vely
1363. Check the consistency used _____________?
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A. Coefficient of variance

B. Coefficient of dispersion

C. Q.D.

D. Mean coefficient

1364. The measure of relative dispersion is called __________________?
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A. Quartile deviation

B. Coefficient of quartile Deviation

C. Mean coefficient

D. Mean dervation

1365. The variance of 4,4,4,4,4,4 is _______________?
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A. (4)2

B. 4

C. None of these

D. 8

1366. The sum of the squares of deviations is the least when measured from____________?
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A. Mode

B. G.M.

C. A.M.

D. Median

1367. Mean deviation, Variance and Standard Deviation of the values 4,4,4,4,4,4 is_______________?
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A. 2

B. 8

C. 0

D. 4

1368. First movement about mean is always equal to ___________?
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A. Zero

B. 1

C. None of these

D. S.D.

1369. If y= bx + c the range of y is ________?
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A. Range of x

B. Range of P

C. Zero

D. Quartile of X
1370. Quartile deviation is not capable of manipulation______________?
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A. Algebraic

B. Easy

C. Abjectly

D. mathematically

1371. In a symmetrical distribution mean, median and mode, _________________?
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A. Less than

B. Greater

C. Coincide

D. Positive

1372. The sum of absolute deviations from median is _____?
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A. Zero

B. Positive

C. Least

D. None of these

1373. The variance of 5 numbers is 10. If each number is divided by 2, then variance of new number is_____________?
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A. 5

B. 2.5

C. 20

D. 0

1374. The correct variance is define as the __________________?
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A. varies of data P2/6

B. M.D. of data h2/6

C. S.D. of data h2/12

D. Variance of data h2/12
1375. In grouped data, the range is the difference between ________________?
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A. Two extreme class limits

B. None of these

C. Two extreme class boundaries

D. Two extreme class frequency

1376. Variance remains unchanged by change of_____________?
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A. Both

B. Scale

C. None of these

D. Origin