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The mean of 100 observation is 50. If on...

The mean of 100 observation is 50. If one of the observation which was 50 is replaced by 150, the resulting mean will be

A

50.5

B

52

C

51.5

D

53

Text Solution

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The correct Answer is:
A
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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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