Question

Find mean if class is 10to20,20to30upto 80 and fi is 4,8,10,12,10,4,2

Answer 1

Mean:Sum of all obs./Total no.of observation

4+8+10+12+10+4+2/7

50/7=7.3

Mode :As we can see 10 and 4 is most occuring frequency in the data so 10 and4 is the mode........ HOPE IT HELPED YOU......