Question

how to find median of more than ogive​

Answer 1

Answer:

1. Plot the points on the graph and join them with lines.

2.Find the value of N/2.

3.Mark this value in the Cumulative frequency scale (y axis).

4.Join this value to the line formed by plotting the points with dotted line .

5.Now connect this point to the point on the x axis with a straight dotted line.

6.The point where this line meets the x axis will be the median.

WE CAN UNDERSTAND IT BETTER WITH AN EXAMPLE...

In the following attachment,

Cf = 35

so N/2 will be 17.5

now we have marked 17.5 on y axis with a dotted line.

join this point to the line obtained by the plotted points with a straight dotted line.

now join it to the x axis.

It meets at 46.5 on the x axis which is the median.

HOPE IT WILL HELP U