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The mean and S.D. of 1,2,3,4,5,6 is...

The mean and S.D. of 1,2,3,4,5,6 is

A

`(7)/(2), sqrt((35)/(12))`

B

3,3

C

`(7)/(2), sqrt(3)`

D

`3, (35)/(12)`

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A
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AAKASH SERIES-MEASURES OF DISPERSION (STATISTICS)-Exercise - I
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  2. In a moderated asymmetrical distribution S.D. is 20 then the mean devi...

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  3. The mean and S.D. of 1,2,3,4,5,6 is

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  4. For a series the information available is n = 10 sum x = 60, sum x^(2)...

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  5. Coefficient of variation of a distribution is 60 and its standard devi...

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  6. If the mean of 10 observations is 50 and the sum of the squares of the...

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  7. Standard deviation of first 'n' natural numbers is

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  8. The variance of the first 50 even natural numbers is

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  9. The median and S.D. of a distribution are 20 and 4 respetively. If eah...

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  10. The standard deviation of 26, 27, 31, 32, 35 is

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  11. The standard deviation of a, a+d, a + 2d,….a + 2nd is

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  12. The variance of first 10 multiples of 3 is

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  13. For a group of 50 male workers, the mean and S.D. of their daily wages...

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  14. If standard deviation of 1,2,3,4,….,10 is sigma then standard deviatio...

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  15. The standard deviation of a variable x is sigma. The standard deviatio...

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  16. The variance of observation x(1), x(2),x(3),…,x(n) is sigma^(2) then t...

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  17. The standard deviations of two sets containing 10 and 20 members are 2...

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  18. The standard deviation of the observations 22, 26, 28, 20, 24, 30 is

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  19. The mean of five observations is 4 and their variance is 5.2. If three...

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  20. Which of the following is correct relations a symmetrical distribution...

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