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Wage rate of 19 workers is given below: {:("Wages(Rs.)",10,20,30,40,50),("Number of Workers",4,5,3,2,5):} Calculate arithmetic mean, using 'Step-deviationMethod.

Answer» <html><body><p></p>Solution :<img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/TRJ_ECO_XI_C09_S01_005_S01.png" width="80%"/> <br/> `barX=A+(sumfd')/(sumf)<a href="https://interviewquestions.tuteehub.com/tag/xxc-2340061" style="font-weight:bold;" target="_blank" title="Click to know more about XXC">XXC</a>` <br/> `A=30,C=10 and (sumfd')/(sumf)=(-1)/19=-0.053` <br/> Putting these <a href="https://interviewquestions.tuteehub.com/tag/values-25920" style="font-weight:bold;" target="_blank" title="Click to know more about VALUES">VALUES</a> in the formula: <br/> `barX=30+(-1)/19xx10=30-0.053xx10` <br/> `=30-0.053=29.47` <br/> <a href="https://interviewquestions.tuteehub.com/tag/arithmetic-15417" style="font-weight:bold;" target="_blank" title="Click to know more about ARITHMETIC">ARITHMETIC</a> <a href="https://interviewquestions.tuteehub.com/tag/mean-1091459" style="font-weight:bold;" target="_blank" title="Click to know more about MEAN">MEAN</a> = Rs. 29.47.</body></html>


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