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The mid value of a class interval is 42 ...

The mid value of a class interval is 42 and the class size is 10. find the lower and upper limits.

A

47 and 37

B

37.5 and 47.5

C

37 and 47

D

47.5 and 37.5

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MODERN PUBLICATION-STATISTICS-EXERCISE
  1. The difference between the highest and lowest values of the observatio...

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

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  3. The mid value of a class interval is 42 and the class size is 10. find...

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  4. The set of poor students in the class is :

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  5. Tallys are usually marked in a bunch of

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  6. The class mark of the class 100-120 is

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

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  8. Let L be the lower class boundary of a class in a frequency distributi...

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

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  10. Let barx be the mean of x1,x2,……,xn and bary the mean of y1,y2……,yn ba...

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  11. The mean of 100 items was found to be 64. later on, it was discovered ...

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  12. The mean of the following table is 8 The value of p is

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  13. The median of the number 84,78,54,45,68,22,34,45,39,54 is

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

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  15. In a histogram, each class rectangle is constructed with base as

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  16. A histogram is a pictorail representation of the frequency data in whi...

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  17. In the less than type of ogive the comulative frequency is plotted aga...

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  18. In a histogram the area of each rectangle is proportional to

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  19. In a frequency distribution, gives are graphical represented of

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  20. The class mark of the class 90-120 is

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