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The weights (in kg) of 50 wrestlers are ...

The weights (in kg) of 50 wrestlers are recorded in the following table.

Find the mean weight of the wrestlers.

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The correct Answer is:
`barx=123.4kg`
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OSWAL PUBLICATION-STATISTICS-NCERT EXEMPLAR (Exercise - 13.3)
  1. Find the mean of the distribution:

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  2. Calculate the mean of the scores of 20 students in a mathematics test

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  3. Calculate the mean of the following data:

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  4. The following table gives the number of pages written by Saria for com...

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  5. The daily income of a sample of 50 employees are tabulated as follows....

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  6. An aircraft has 120 passsenger seats. The number of seats occupied dur...

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  7. The weights (in kg) of 50 wrestlers are recorded in the following tabl...

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  8. The mileage (km per litre) of 50 cars of the same model was tested by ...

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  9. The following is the distribution of weights (in kg) of 40 persons. ...

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  10. The following table show tha cumulative frequency distribution of mark...

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  11. Form the frequency distribution table from the following data: Const...

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  12. Find the unknown entries a, b, c, d, e and f in the following distribu...

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  13. The following are the ages of 300 patients getting medical treatment i...

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  14. The following are the ages of 300 patients getting medical treatment i...

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  15. Given below is a cumulative frequency distribution showing the mars se...

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  16. Weekly income of 600 families is tabulted below. Compute the medi...

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  17. The maximum bowling speeds, in km per hour, of 33 players at a cricket...

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  18. The monthly income of 100 families are given as below Calculate t...

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  19. The weights of coffee im 70 packets are shown in the following table ...

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