find mean ,median,mode :ci 100 to 120 ,120 to 140, 140to 160,160 to 180, 180to 200 frequency 4 ,5,8,1,2.
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Step-by-step explanation:
mean
100-120=110 fi 4.....110*4=440
120-140=130 fi 5.....130*5=650
140-160=150 fi 8.....150*8=1200
160-180=170 fi 1.....170*1=170
180-200=190 fi 2.....190*2=380
total Efi=20 and Exifi=2640
mean 2640/20=132
median
4+5=9+8=17+1=18+2=20.....20/2=10
median 10
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