Answer :



(i) Group have maximum workers = ( 830 – 840 )


(ii) Workers have earning more than Rs.850 = 2+1+4+1+2 = 10


(iii) Worker earns less than Rs.850 = 4+2+1+11+2 = 20.


Histogram: by drawing class interval on ‘x’ axis and number of workers on ‘y’ axis.



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