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For a series the value of men deviat...

For a series the value of men deviation is 15. The most likely value of its quartile deviation is -

A

`12*5`

B

`11*6`

C

13

D

`9*7`

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The correct Answer is:
A
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ML KHANNA-MEASURES OF CENTRAL TENDENCY -Problem Set (1) (Measures of Disperation)
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  2. The sum of squares of deviations of 10 items about mean 50 is 250. The...

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  3. If s.d. of X is sigma then s.d. of the variable U=(aX+b)/(c ) where a,...

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  4. The mean of five observations is 44 and and the variance is 8*24. Thre...

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  5. Mean deviations of the series a,a+d,a+2d, . . .,a+2nd from its mean is

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  6. A sample of 35 observations has the means 80 and SD. As 4. A second sa...

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  7. The first of the two samples have 100 items with mean 15 and S.D.3. If...

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  8. The mean and s.d. of 63 children on an arithmetic test are repectively...

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  9. Coefficient of skewness for the values {:("Median = "18*8''),(Q...

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  10. For a series the value of men deviation is 15. The most likely ...

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  11. Karl Pearson's coefficient of skewness of a distribution is 0*32. Its ...

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  12. Which of the following are dimensionless

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  13. The variance of the first n natural numbers is

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  14. An incomplete frequency distribution is given below Median value ...

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  15. Mean deviation about the mean bar(x) of the variate x is (2)/(N)[ba...

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  16. If r be the range and S={(1)/(n-1)Sigma(i)(x(i)-bar(x))^(2)}^(1//2) b...

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  17. The score of two golfers for 10 rounds each are A : 58,59,60,54,65,6...

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  18. If the variable takes the values 0,1,2, . . .,n with frequencies propo...

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  19. A student obtained the mean and s.d. of the observations as 40 and 5*1...

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  20. The S.D. is not less than the mean deviation. True/False

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