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For any collection of n items, sum(x-bar...

For any collection of n items, `sum(x-barx)=`.........

A

`sumx`

B

`barx`

C

`nbarx`

D

`0`

Text Solution

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The correct Answer is:
D
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FULL MARKS-STATISTICS AND PROBABILITY-Additional question solved
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  2. For a collection of 11 items, sumx=132, then the arithmetic mean is .....

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  3. For any collection of n items, sum(x-barx)=.........

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  4. For any collection of n items, sum(x-barx)=.........

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  5. If t is the standard deviation of x,y,z then the standard deviation of...

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  6. If the standard deviation of a set of data is 1.6, then the variance i...

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  7. If the variance of a data is 12.25, then the S.D is ...........

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  8. Variance of the first 11 natural numbers ........

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  9. The variance of 10,10,10,10,10 is ............

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  10. If the variance of 14, 18, 22, 26,30 is 32, then the variance of 28,36...

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  11. Standard deviation of a collection of data is 2sqrt(2). If each value ...

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  12. Given sum(x-barx)^(2)=48, barx=20 and n=12 . The coefficient of variat...

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  13. Mean and standard deviation of a data are 48 and 12 respectively. The ...

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  14. If phi is an impossible event, then P(phi)=............

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  15. If S is the sample space of a random experiment, then P(S)=..........

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  16. If p is the probability of an event A, then p satisfies ................

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  17. Let A and B be any two events and S be the corresponding sample space....

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  18. The probability that a student will score centum in mathematics is (4)...

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  19. If A and B are two events such that P(A)=0.25, P(B)=0.05 and P(AnnB)=0...

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  20. There are 6 defective items in a sample of 20 items. One item is drawn...

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