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For drawing a frequency polygon of a con...

For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respecitve classes and abscissae are, respectively

A

upper limits of the classes

B

lower limits of the classes

C

class marks of the classes

D

upper limits of preceding classes

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The correct Answer is:
C
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MTG IIT JEE FOUNDATION-STATISTICS-Exercise (Multiple Choice Question)
  1. The median of the numbers 45, 34, 65, 48, 93, 54, 22, 86, 45, 87 is

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  2. Mode of the data 51, 14, 71, 15, 91, 2, 51, 19, 41, 51, 18, 15, 51 is

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  3. For drawing a frequency polygon of a continuous frequency distribution...

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  4. The marks obtained by 20 students of a class in a test (out of 50) are...

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  5. The class mark of the class 150 - 170 is

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  6. The mean of eight numbers is 40. If one number is excluded, their mean...

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  7. The median of the data arranged in ascending order 8, 9, 12, 18, (x + ...

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  8. The points scored by a kabaddi team in a series of matches are as foll...

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  9. The marks obtained by 12 students of a class in a test are 36, 27, 5, ...

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  10. Find the mean of the following distribution:

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  11. The class marks of a frequency distribution are 104, 114, 124, 134, 14...

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  12. Find the mean of the following marks of 20 students on a screening tes...

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  13. The maximum temperatures (in degree celcius) for a city in North India...

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

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  15. The mean weight of 60 students of a class is 52.75 kg. If mean weight ...

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  16. Mean of 20 observations is 17. If observation 40 is replaced by 12, th...

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  17. Find the median of the following data 95, 65, 75, 70, 75, 100, 50, 40

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  18. Themodeofthedata 15, 14, 19,20, 14, 15, 16, l4, 15, 18, 14, 19, 15, 17...

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  19. The mean of first seventeen whole numbers is

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  20. If the mean of 2x, 2x + 3, 2x + 5, 2x + 7, 2x + 10 is 11, the mean of ...

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