marks obtained by 70 students are given

Question

Marks obtained by 70 students are given below:

Marks	20	70	50	60	75	90	40
No. of Students	8	12	18	6	9	5	12

Marks No . of students c.f 20 8 8 40 12 20 50 18 38 60 6 44

Find the median.                                                                                 (Ans:50)

Ans:

70	12	53
75	9	58
90	5	70

N = 70

N/2 = 70/2 = 35

The corresponding value of marks for 35 is 50