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Thefollowing table shows marks in economics of the students of a class. Calculate arithmetic mean. {:("Marks",,"Number of Students"),("More than 0",,""30),("More than 2",,""28),("More than 4",,""24),("More than 6",,""18),("More than 8",,""10):}

Answer» <html><body><p></p>Solution :Converting Cumulative Frequency Distribution into a Simple Frequency Distribution, we get the following: <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/TRJ_ECO_XI_C09_S01_010_S01.png" width="80%"/> <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> mean of this <a href="https://interviewquestions.tuteehub.com/tag/continuous-932035" style="font-weight:bold;" target="_blank" title="Click to know more about CONTINUOUS">CONTINUOUS</a> series is <a href="https://interviewquestions.tuteehub.com/tag/estimated-975638" style="font-weight:bold;" target="_blank" title="Click to know more about ESTIMATED">ESTIMATED</a> below, <a href="https://interviewquestions.tuteehub.com/tag/using-7379753" style="font-weight:bold;" target="_blank" title="Click to know more about USING">USING</a> <a href="https://interviewquestions.tuteehub.com/tag/direct-954477" style="font-weight:bold;" target="_blank" title="Click to know more about DIRECT">DIRECT</a> Method. <br/> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/TRJ_ECO_XI_C09_S01_010_S02.png" width="80%"/><br/> `barX=(sumfm)/(sumf)=(190)/(30)=6.33` <br/> Arithmetic Mean = 6.33 marks.</body></html>


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