Question

Find the mode marks from the following data ANS THE 22 one please

Answer 1

let we make a modal data table

c.I. c.f. f.i

0-10. 15. 15

10-20. 45. 30

20-30. 90. 60

30-40. 102. 12

40-50. 120. 18

mode =l+(f1-f0)/(2f1-f0-f2)×h

=20+(60-30)/(2×60-30-12)×10

=20+(30/78)×10

=20+3.8

= 23.8.