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The standard deviation of first 10 natur...

The standard deviation of first 10 natural numbers is 8.25 (b) 6.5 (c) 3.87 (d) 2.87

A

5.5

B

3.87

C

2.97

D

2.87

Text Solution

Verified by Experts

The correct Answer is:
D
We know that, SD of first n natural numbers`=sqrt((n^(2)-1)/(12))`
`therefore` SD of first 10 numbers `=sqrt((10^(2)-1)/(12))`
`=sqrt((100-1)/(12))=sqrt((99)/(12))=sqrt(8.25)=2.87`
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CENGAGE-STATISTICS-Exercise (Single)
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  4. Variance of the data 2,4,6,8,10 is

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  5. If the standard deviation of 0,1,2,3...9 is K, then the standard devia...

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

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  8. The standard deviation of 25 numbers is 40. If each of the numbers in ...

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  9. Consider any set of observations x(1),x(2),x(3),..,x(101). It is given...

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  12. The standard deviation of variate xi is σ. Then standard deviation of ...

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  13. The standard deviation of the data 6,5,9,13,12,8,10 is

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  14. If the mean of 100 observations is 50 and their standard deviations is...

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  15. The standard deviation of first 10 natural numbers is 8.25 (b) 6.5 (c)...

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  16. Consider the numbers 1,2,3,4,5,6,7,8,9,10. If 1 is added to each nu...

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  17. Consider the first 10 positve integers .If we multiply each number by ...

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  18. If for a sample of size 60, we have the following information sumxi2=1...

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