Question

Find the median of the follwing data
Marks (28—30,30—40,40—50,50—60,60—70,70—80,80—90)
No of students (5,15,25,20,7,8,10)

Answer 1

Answer:

upto 30 : 5

upto 40 : 20

upto 50 : 45

upto 60 : 65

upto 70 : 72

upto 80 : 80

upto 90 : 90

90/2=45

45 is more than 40 & less than 50

so median is 50