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The mean deviation of the series 3, 4, 5...

The mean deviation of the series 3, 4, 5, 6, 7 about the median is

A

25

B

5

C

1.2

D

0

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The correct Answer is:
D
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PATHFINDER-STATISTICS-QUESTION BANK
  1. For a frequency distribution, standard deviation is computed by applyi...

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  2. The mean of the series a,a+d, a+2d,…,a+2nd is

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  3. The mean deviation of the series 3, 4, 5, 6, 7 about the median is

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  4. If upsilon is the variance and sigma is the standard deviation, then

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  5. Find the range of the data 72, 62, 44, 25, 94, 54, 9, 56, 71, 27

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  6. Find the standard Deviation of 6 and 8.

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  7. Find the mean if the coefficient of variation is 5% and variance is 4.

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  8. If the mean of the numbers 27+x, 31+x, 89+x, 107+x, 156+x is 82, then ...

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  9. In a class of 100 students there are 70 boys whose average marks in su...

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  10. The median of a set of 9 distinct observations 20.5. If each of the la...

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  11. A set of numbers consisting of three 4's, five 5's, six 6's, eight 8's...

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  12. Find the mean deviation about the mean of the data : 7, 8, 4, 13, 9, 5...

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  13. Find the mean deviation about the median of the data : 34, 23, 46, 37,...

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  14. Find the mean if the coefficient of variation is 5% and variance is 4.

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  15. If co-efficient of variation = 45% and mean = 24. Find the standard De...

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  16. Two variables x and y are related by y = 2-3x If the S.D of x be 1.5 t...

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  17. The variance of first n natural numbers is 44. Find the value of n.

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  18. Find the range for the following frequency distribution :

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  19. The standard Deviation of 30 observation of a sample is 4.5 If each ob...

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  20. If the SD of the first numbers even integers be sqrt40, then find numb...

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