Question

Find the median of the following frequency distribution

height(in cm) 95-105 105-115 115-125 125-135 135-145 145-155

number of students 9 13 25 30 11 12​

Answer 1

Answer:

Arrange in ascending order

9 (95-105), 11(135-145),12(145-155),13(105-115),25(115-125), 30(125-135)

There are 6 terms

So median= (3rd term+4th term)/2

=(150+110)/2=130 or 105 -155