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Find the standard deviation of first 21 ...

Find the standard deviation of first 21 natural numbers.

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The correct Answer is:
`~=`6.05
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PREMIERS PUBLISHERS-STATISTICS AND PROBABILITY -OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS
  1. Find the standard deviation of first 21 natural numbers.

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  2. If the sum and mean of the data are 418 and 11 respectively then the n...

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  3. The coefficient of range of the data 20, 62, 43, 48, 13, 34, 39, is :

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  4. If the standard deviation of the data 2, 3, 5, 7, 8, is 2.28 what will...

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  5. The variance of first 10 natural numbers is:

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  6. The mean of the data is 16 and the coefficient of varation is 12.5. Fi...

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  7. Batsmen A and B have their coefficient of variation as 13.5% and 25% r...

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  8. When a dice is thrown, the probability of getting an odd number is:

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  9. When two dice is thrown, the probability of getting sum of the number ...

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  10. A bag contains 6 blue balls and 5 green balls and 2 red balls. A ball ...

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  11. Two dice are rolled. Find the probability that the sum of the outcome ...

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  12. From a well shuffled pack of 52 cards one card is selected at random. ...

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  13. A year is selected at random. What is the probability that {:("(...

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  14. Three fair coins are tossed together. Find the probability of getting ...

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  15. If P(A)=0.5, P(B)=0.3, P(AcapB)=0.25. Find P(AcupB)

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  16. Ia A and B are mutually exclusive, given P(AcupB)=(3)/(5), P(A)=(1)/(2...

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  17. Given A and B are mutually exclusine events P(not A)= 0.35 P(AcupB)=0....

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  18. Find the odd one out:

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  19. The sum of all deviations of the data from its mean is

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  20. The range of 6, 6, 6, 6, 6, 6, 6 is:

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  21. If the standard deviation of a, b, c is sigma this standard deviation ...

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