Question

Calculate the median marks for the following data . Marks 9 20 25 40 50 80 & the number of students..corresponding the marks(class interval) No. of Students 4 6 16 8 7 2 answer..step by step

Answer 1

Answer:

Class (1) Frequency (f) (2) cf (3)

150-200 a 95 + a (3)=Previous (3)+(2)

200-250 40 135 + a (3)=Previous (3)+(2)

250-300 20 155 + a (3)=Previous (3)+(2)