Question

pls answer this question it is very important pls answer fast​

Answer 1

Answer:

will have to make column of cf which we get as:

f1

15+f1

40+f1

60+f1

60+f1+f2

68+f1+f2

78+f1+f2

median=l+(n/2-cf/f)*h

49.2=40+(45-15-f1/25)*10

9.2=30-f1/25*10

0.92=30-f1/25

23=30-f1

f1=7

now putting value of f1 in equation we will get f2 which is 5