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In a frequency distribution, the mid val...

In a frequency distribution, the mid value of a class is 10 and width of the class if 6. the lower limit of the class is

A

6

B

7

C

8

D

12

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MODERN PUBLICATION-STATISTICS-EXERCISE
  1. The class mark of the class 90-120 is

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  2. The range of the data: 27,18,20,16,6,17,15,12,30,32,10,19,8,11,20 is

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  3. In a frequency distribution, the mid value of a class is 10 and width ...

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  4. The width of each of five continuous classes in a frequency distibutio...

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  5. Let m be the mid-point and l be the upper class limit of a class in a ...

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  6. The class marks of a frequency distribution are given as follows : 15,...

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  7. In the class intervals 10-20, 20-30, the number 20 is included in.

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  8. A grouped frequency table with class intervals of equal sizes using 25...

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  9. A grouped frequency distribution table with classes of equal sizes usi...

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  10. To draw a histogram to represent the following frequency distribution ...

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  11. The mean of five numbers is 30. If one number is excluded, their mean ...

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  12. If the mean of the observations : x, x + 3, x + 5, x + 7, x + 10 is 9,...

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  13. If barx represents the mean of n observations x1, x2,…….,xn , then val...

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  14. If each observation of the data is increased by 5, then their mean

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  15. The mean of 100 observations is 50. If one of the observations which w...

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  16. There are 50 numbers. Each number is subtracted from 53 and the mean o...

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  17. The mean of 25 observations is 36. Out of these observationsif the mea...

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  18. The median of the data 78, 56, 22, 34, 45, 54, 39, 68, 54, 84 is

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  19. Median of the following numbers : 4, 4, 5, 7, 6, 7, 7, 12, 3 is

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  20. Mode of the data 15, 14, 19, 20, 14, 15, 1 6, 14, 15, 18, 14, 19, 15, ...

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