1.

Find the mode from the following distribution :

Answer» Modal class : 40-60
`Delta_(1)=27-17=10, " " l_(1)=40`
`Delta_(2)=27-18=9," " i=20`
Mode `=l_(1)+(Delta_(1))/(Delta_(1)+Delta_(2))xxi=40+(10)/(10+9)xx20=40+(200)/(19)`
`=40+10.53=50.53` marks approx.


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