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Find the mean of the following distribut...

Find the mean of the following distribution: x: 4 6 9 10 15 f: 5 10 10 7 8

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RD SHARMA ENGLISH-MEASURES OF CENTRAL TENDENCY-All Questions
  1. The mean of 16 numbers is 8. If 2 is added to every number, what will ...

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  2. The mean of 10 numbers is 20. If 5 is subtracted from  every number, ...

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  3. Find the mean of the following distribution: x: 4 6 9 10 ...

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  4. If the mean of the following distribution is 6, find the value of p....

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  5. Five coins were simultaneously tossed 1000 times and at each toss t...

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  6. Find the median of the following data: 25, 34, 31, 23, 22, 26, 35, 28,...

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  7. Find the value of p, if the mean of the following distribution is 7...

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  8. Find the missing frequencies in the following frequency distribution i...

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  9. The mean of 16 items was found to be 30. On rechecking, it was found t...

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  10. The mean monthly salary of 10 members of a group is Rs. 1445, one m...

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  11. Find the mean of the following distribution: x: 4 6 9 10 ...

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  12. Following table shows the weights of 12 students: Weight (in kgs):...

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  13. If the mean of n observation a x1, a x2, a x3, ,a xn is a barX , ...

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  14. If the mean of 6, 4, 7, p and 10 is 8, find the value of p.

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  15. Find the sum of the deviations of the variate values 3,4,6,8, 14 from ...

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  16. The mean of 40 observations was 160. It was detected on rechecking ...

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  17. If the heights of 5 persons are 144 cm, 152cm, 151cm, 158 cm and 155...

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  18. Find the arithmetic mean of first 6 natural numbers.

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  19. Find the arithmetic mean of first ten odd natural numbers

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  20. The weights (in kg) of 15 students are: 31, 35, 27, 29, 32, 43, 37, ...

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