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The mean of the following distribution is 18. Find the frequency f of the class 19-21. Class11−1313−1515−1717−1919−2121−2323−25Frequency36913f54 OR The following distribution gives the daily income of 50 workers of a factory: Daily Income (in Rs)100−120120−140140−160160−180180−200Number of workers12148610 Convert the distribution above to less than type cumulative frequency distribution and draw its ogive.

Answer» The mean of the following distribution is 18. Find the frequency f of the class 19-21.

Class1113131515171719192121232325Frequency36913f54

OR

The following distribution gives the daily income of 50 workers of a factory:

Daily Income (in Rs)100120120140140160160180180200Number of workers12148610

Convert the distribution above to less than type cumulative frequency distribution and draw its ogive.


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