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The mean of 100 observations is 50 and t...

The mean of 100 observations is 50 and their standard deviation is 5. The sum of all squares of all the observations is ………….

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2,52,500
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Let x_1,x_2, x_3, x_4, x_5 be the observations with mean m and standard deviation S. The standard deviation of the observations kx_1,kx_2,kx_3,kx_4,kx_5 is ……….

Let x_1,x_2,x_3,………,x_n be n observations . Let W_i = lx_i + k for i=1,2,……,n, where l and k are constants. If the mean of x_i's is 48 and their standard deviation is 12, the mean of w_i's is 55 and standard deviation of w_i's is 15, the values of l and k should be ..........

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KUMAR PRAKASHAN-OBJECTIVE SECTION AS PER NEW PAPER SCHEME -Statistics (Fill in the Blanks)
  1. Median of nine observations is 20.45 . If 2 is added in last four obse...

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  2. Suppose in group A, 100 observations are 101 , ….. 200 and in group B ...

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  3. If the standard deviation of variable x is 4 and y = (3x + 7)/(4) then...

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  4. The variance of observations 3,4,5,8 is

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  5. The mean of 100 observations is 50 and their standard deviation is 5. ...

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  6. Let a,b,c,d,e be the observations with mean m and standard deviation S...

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  7. S.D. of the observation x1, x2, x3 ..... xn is 3.5 then S.D. of -2x 1...

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  8. Median of the data 9,15,20,22,8,17,10,18,14,25 is …..

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  9. Find x if the median of the observation 33,28,20,25,34 and x is 29.

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  10. Median of nine observations is 20.45 . If 2 is added in last four obse...

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  11. Suppose in group A, 100 observations are 101 , ….. 200 and in group B ...

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  12. If the standard deviation of variable x is 4 and y = (3x + 7)/(4) then...

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  13. The variance of observations 3,4,5,8 is

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  14. The mean of 100 observations is 50 and their standard deviation is 5. ...

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  15. Let a,b,c,d,e be the observations with mean m and standard deviation S...

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  16. S.D. of the observation x1, x2, x3 ..... xn is 3.5 then S.D. of -2x 1...

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  17. Median of the data 9,15,20,22,8,17,10,18,14,25 is …..

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  18. Find x if the median of the observation 33,28,20,25,34 and x is 29.

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