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Mean deviation from the mean for data 6,...

Mean deviation from the mean for data 6, 7 10, 12, 13, 4, 8, 12 is

A

2.35

B

2.75

C

3.35

D

3.75

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The correct Answer is:
B
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AAKASH SERIES-MEASURES OF DISPERSION (STATISTICS)-Exercise - I
  1. A man travels at a speed of 20 Km/hr. and then returns at a speed of 3...

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  2. The mean deviation from the mean for the set of observation -1, 0, 4 i...

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  3. Mean deviation from the mean for data 6, 7 10, 12, 13, 4, 8, 12 is

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  4. The mean deviation of the number 3, 4, 5, 6, 7 from median is

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  5. If mean deviation through median is 15 and median is 450, then coeffic...

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  6. In a moderated asymmetrical distribution S.D. is 20 then the mean devi...

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  7. The mean and S.D. of 1,2,3,4,5,6 is

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  8. For a series the information available is n = 10 sum x = 60, sum x^(2)...

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  9. Coefficient of variation of a distribution is 60 and its standard devi...

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  10. If the mean of 10 observations is 50 and the sum of the squares of the...

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  11. Standard deviation of first 'n' natural numbers is

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  12. The variance of the first 50 even natural numbers is

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  13. The median and S.D. of a distribution are 20 and 4 respetively. If eah...

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  14. The standard deviation of 26, 27, 31, 32, 35 is

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  15. The standard deviation of a, a+d, a + 2d,….a + 2nd is

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  16. The variance of first 10 multiples of 3 is

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  17. For a group of 50 male workers, the mean and S.D. of their daily wages...

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  18. If standard deviation of 1,2,3,4,….,10 is sigma then standard deviatio...

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  19. The standard deviation of a variable x is sigma. The standard deviatio...

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  20. The variance of observation x(1), x(2),x(3),…,x(n) is sigma^(2) then t...

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