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The class marks of a frequency distribut...

The class marks of a frequency distribution are given as follows 15,20, 25,……….. The class corresponding to the class mark 20 is

A

` 12.5 - 17.5 `

B

` 17.5 - 22.5`

C

` 18.5-21.5`

D

` 19.5 – 20.5`

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The correct Answer is:
B
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MCGROW HILL PUBLICATION-STATISTICS -MULTIPLE CHOICE QUESTIONS
  1. Class mark of class interval 60–70 is

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  2. Class mark of a particular class is 6.5 and class size is 3, then clas...

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  3. The mean of the factors of 24 is:

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  4. What is the arithmetic mean of the squares of first five natural numbe...

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

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  6. If barx(1), barx(2), barx(3),………barx(n) are the means of n groups with...

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  7. The mean of 100 observation is 50. If one of the observation which was...

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  8. The arithmetic mean of the cubes of first four natural numbers is

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  9. The mean of 11 numbers is 35. If the mean of the first 6 numbers is 32...

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  10. The mean of six numbers is 20. If one number is excluded, the mean is ...

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  11. If m is the mid-point and l is the upper limit of a class in a contino...

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  12. The class marks of a frequency distribution are given as follows 15,20...

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  13. In the class intervales 10-20, 20-30, the number is 20 is included in

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  14. निम्नलिखित बारम्बारता बंटन का माध्य ज्ञात कीजिए : {:(x:,10,12,20,2...

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  15. यदि निम्नलिखित आँकड़ों का माध्य 15 है, तो p का मान ज्ञात कीजिए । {:(x...

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  16. Kavita obtained 16, 14, 18 and 20 marks (out of 25) in Maths in weekly...

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

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  18. The range of the data 25, 18, 20, 22, 16, 6, 17, 12, 30, 32, 10, 19, 8...

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  19. In a frequency distribution, the mid value of a class is 10 and the wi...

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  20. The width of each of five continuous classes in a frequency distributi...

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