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If bar x, is the mean of x1, x2, x3,…………...

If `bar x`, is the mean of `x_1`, `x_2`, `x_3`,…………..`x_n` (n items) then `overset(n)underset(i = 1)Sigma(X i_-bar X)`=...........

A

0

B

`nbarx`

C

`x/n`

D

`(2barx)/n`

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VGS PUBLICATION-BRILLIANT-STATISTICS-EXERCISE
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  2. Median = l+[((n/2-cf))/f]xxh, where cf = ..........

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  3. If bar x, is the mean of x1, x2, x3,…………..xn (n items) then overset(n)...

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  4. Mode can be calculated by = l+((f1-f0)/(2f1-f0-f2))xxh here f1 represe...

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  5. The X-coordinate of the point of intersection of the two ogives of gro...

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  6. 3, 2, 4, 3, 5, 2, x, 6. If the mode of this data is 3, then x = .........

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  7. For the terms, x + 1, x + 2, x - 1, x + 3 and x -2 (x in N), if the me...

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  8. Which of the following is not a measure of central tendency ?

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  9. The most stable measure of central tendency is

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  10. If the less than type Ogive and more than type Ogive intersect each ot...

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  11. The mean of a set observations is bar(x). If each observation if divid...

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  12. If 14 is deleted from the data 12, 14, 15, 16, 17, 18, 19 and 20, then...

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  13. The mean of the first eight multiples of 3 is

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  14. The class marks of a class interval is ..........

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  15. If mode of the following data is 7, then the value of 6, 3, 5, 6, 7, 5...

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  16. Mode of the following distribution is

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  17. Which of the following is not a measure of central tendency ?

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  18. For a symmetrical distribution, which is correct ?

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  19. The measure of central tendency which take into account all data terms...

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  20. A data arrange in descending order has 25 observations. Which observat...

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