Question

please solve the question

Answer 1

hope so it will help you


class interval and frequency will be same I'm just writing the cf. hope you will understand ☺

cf
4
9
22
42
56
64
68

then median formula
= l+{n/2 +cf} × h
÷
f

now put the values
= 125 + {34-22÷20} × 20
=125 + {12÷20} × 20

(20 will be cancelled )
=125+{12}
=137
therefore , 137 is the median