The following table shows marks secured by the students of a class in an examination in English: {:("Marks",0-10,10-20,20-30,30-40,40-50),("Number of Students"," "20," "24," "40," "36," "20):} Calculte mean marks using Short-cut Method.

The following table shows marks secured by the students of a class in

1.	The following table shows marks secured by the students of a class in an examination in English: {:("Marks",0-10,10-20,20-30,30-40,40-50),("Number of Students"," "20," "24," "40," "36," "20):} Calculte mean marks using Short-cut Method.
Answer» <html><body><p></p><a href="https://interviewquestions.tuteehub.com/tag/solution-25781" style="font-weight:bold;" target="_blank" title="Click to know more about SOLUTION">SOLUTION</a> :<img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/TRJ_ECO_XI_C09_S01_007_S01.png" width="80%"/> <br/> `(sumfd)/(sumf)=(<a href="https://interviewquestions.tuteehub.com/tag/120-270396" style="font-weight:bold;" target="_blank" title="Click to know more about 120">120</a>)/(<a href="https://interviewquestions.tuteehub.com/tag/140-273392" style="font-weight:bold;" target="_blank" title="Click to know more about 140">140</a>)=0.86` <br/> `barX=A+(sumfd)/(sumf)` <br/> `=25+0.86` <br/> `=25.86`<br/> <a href="https://interviewquestions.tuteehub.com/tag/mean-1091459" style="font-weight:bold;" target="_blank" title="Click to know more about MEAN">MEAN</a> <a href="https://interviewquestions.tuteehub.com/tag/marks-1088184" style="font-weight:bold;" target="_blank" title="Click to know more about MARKS">MARKS</a> = 25.86.</body></html>