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The following table gives the distributi...

The following table gives the distribution of students of two sections according to the marks obtained by them :
: Represent the marks of the students of both the sections on the same graph by two frequency polygons. From the two polygons compare the performance of the twosections.

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MODERN PUBLICATION-STATISTICS-EXERCISE
  1. The length of 40 leaves of a plant are measured correct to one millime...

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  2. The length of 40 leaves of a plant are measured correct to one millime...

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  3. The following table gives the distribution of students of two sections...

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  4. The runs scored by two teams A and B in the first 60 balls in a cricke...

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  5. 100 surnames were randomly picked up from a local telephone directory ...

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  6. 100 surnames were randomly picked up from a local telephone directory ...

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  7. Mean, median and mode are measured in same units. Is it true?

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  8. Class mark of 60-90 is 75. Is it true?

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  9. If the mean of 2,4,6,8,a,b is 5, find a+b.

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  10. If the median of x/2,x/3,x/4,x/5 and x/6(x>0) is 6. then find x/6.

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  11. If the median of 33,28,20,25,34,x is 29. find the maximum value of x.

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  12. If the mode of 13,14,15,14,16,15,x is 14, find the value of x.

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

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

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

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  16. If each observation of a data is increased by 3, then what about the n...

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  17. True/false Mean, Median and Mode are measures in same units.

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  18. True/false Class Mark of 90-120 is 100.

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  19. True/false Mode of 2,3,9,16,3,9, is 16.

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  20. True/false For the set of numbers 2,2,4,5 and 12, then Mean>mode

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