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Mean of the data 8, 7, 6, 14, 12, 10, 20...

Mean of the data 8, 7, 6, 14, 12, 10, 20, 16, 15 and 14 is 12.2. If each observation is multiplied by 2 and then 3 is added, the new mean is

A

38.6

B

61

C

27

D

27.4

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VGS PUBLICATION-BRILLIANT-STATISTICS-EXERCISE
  1. Mean of the data   x1 , x2 , x3 , x4 , x5  is 15. If each observation ...

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  2. If the mean of the data 12, 8, 6, 3, 9 is 7.6. If 5 is added to each o...

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  3. Mean of the data 8, 7, 6, 14, 12, 10, 20, 16, 15 and 14 is 12.2. If ea...

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  4. The median of n observations arranged in ascending order when n is eve...

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  5. A data having two modes is

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  6. The mode of the data 8, 5, 3, 8, 3, 6, 5, 3, 7, 5 and 11 is

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  7. The difference between any two lower limits is called

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  8. The mean of the observations x-1, x and x + 1 is

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  9. The median of first 10 natural numbers is

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  10. 30-39, 40-49, 50-59 .. తరగతులు .. రకపు తరగతులు .

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  11. The mode of the distribution 2, 5, 7, 5, 3, 1, 5, 8, 7, 5 is

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  12. The median of the observations 15, 12, 14,20,16,10 is

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  13. Mid values are used to calculate ..........

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

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  15. The mode of the observations 8, 9, 10, 11, 12, 8, 9, 12, 9, 8, 9, 11, ...

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  16. The median of the observations 6, 21, 9, 19, 15 and 13 is

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  17. The lower limit of the class 60 - 69 is

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  18. The upper limit of the class 30-40 is

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  19. The mean of first ten odd natural numbers is

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  20. The width of the class interval 40-50 is

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