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The mean of the following data is 42 Fin...

The mean of the following data is 42 Find the missing frequencies x and y if the sum of all frequecies are 100

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The correct Answer is:
x=12, y=25
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RS AGGARWAL-MEAN,MEDAN,MODE OF GROUPED,DATA CUMULATIVE FREQUENCY GRAPH AND OGIVE -EXERCISE 18 A
  1. If the mean of the following frequency distribution is 24, find the va...

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  2. The following distrubution shows the daily pocket allowance or childer...

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  3. If the mean of the following frequency distribution is 54, find the va...

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  4. The mean of the following data is 42 Find the missing frequencies x an...

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  5. The daily expenditure of 100 families are given below. Calculate f1 an...

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  6. The mean of the following frequency distrubution is 57.6 and the total...

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  7. During a medical check-up the number of heartbeates per minute of 30 p...

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  8. Find the mean of the following frequency distribution , using the assu...

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  9. Find the mean of the following frequency distribution , using the assu...

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  10. Find the mean of the following data, using the assumed- mean method :

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  11. The following table gives the literacy rate (in percentage ) in 40 cit...

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  12. Find the mean of the following frequency distdribution using step- dev...

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  13. Find the mean of following data, using step-deviation method :

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  14. The weights of tea is 70 packets are shwon in the following tagble : ...

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  15. Find the mean of the following frequency distribution using a suitable...

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  16. In an annual examination marks (out of 90) obtained by students of Cla...

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  17. Find the arithmetic mean of the following frequency distribution using...

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  18. Find the mean of the following data using step-devition method :

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  19. Find the avg age from the following frequency distribution :

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  20. The following table shows the age distribution of paitents of malaria ...

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