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The A.M. of the series .^(n)C(0), .^(n...

The A.M. of the series
`.^(n)C_(0), .^(n)C_(1), .^(n)C_(2),….,.^(n)C_(n)` is

A

`(2^(n))/(n+1)`

B

`(2^(n))/(n)`

C

`(2^(n-1))/(n+1)`

D

`(1)/(n+1)`

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-MEASURES OF DISPERSION (STATISTICS)-Practice Exercise
  1. The mean of a set observations is bar(x). If each observation if divid...

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  2. If the mean of a set of observations x(1), x(2),….,x(10) is 20 then th...

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  3. The A.M. of the series .^(n)C(0), .^(n)C(1), .^(n)C(2),….,.^(n)C(n) ...

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  4. The mean of first three items is 14 and mean of next two items is 18. ...

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  5. Six faces of a balanced die are numbered from integers 1 to 6. This di...

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  6. The A.M. of set of 50 numbers is 38. If two numbers of the set, namely...

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  7. The simple and weighted arithmetic mean of the first n natural numbers...

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  8. The average salary of male employees in a firm was RS. 520 and that of...

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  9. The median of 25, 14, 11, 26, 18 , 17, 40, 29, 19, 20, 13 is

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  10. The median of 111, 129, 143, 118, 120, 125, 170, 162 is

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  11. The median of the following items 25,15,23,40,27,25,23,25 and 20 is

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  12. The test marks in statistic for a class are 20,24,27,38,18,42,35,21,44...

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  13. The mean of two samples of sizes 200 and 300 were found to be 25, 10 r...

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  14. The median of a series is 10. Two additional observations 7 and 20 are...

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  15. The mean and standard deviation of 20 items is found to be 10 and 2 re...

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  16. If in a moderately skewed distribution, the values of mode and mean ar...

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  17. The mode of a set of observation 7, 12,8,5,6,4,9,10,8,9,7,6,5,9 is

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  18. The mode of 3,3,7,4,5,3,5,6,8,9,5,3,5,3,6,9,7 ,4 is

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  19. For data 4,5,5,7,6,6,3,2,5,7,6,7 the number of modes is

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  20. Mode of 12,14,11,16,15,14,11,13,14 is

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