Question

Calculate the mean for the following frequency distribution:
Marks 15-19 20-24 25-29 30-34 35-39 40-44)
Frequency 6 5 9 12 16 2
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Answer 1

mean=no of observation/no of observation 15+19+20+24+25+29+30+34+35+39+40+44/6+5+9+12+16+2=354/50=7.08 is your answer please mark as brain list