Question

how do we complete the polygon when there is no class preceding the first class​

Answer 1

To draw frequency polygons, first we need to draw histogram and then follow the below steps:

Step 1- Choose the class interval and mark the values on the horizontal axes.

Step 2- Mark the mid value of each interval on the horizontal axes.

Step 3- Mark the frequency of the class on the vertical axes..

Hope its helps you☺☺

Answer 2

Step-by-step explanation:

To draw frequency polygons, first we need to draw histogram and then follow the below steps:

Step 1- Choose the class interval and mark the values on the horizontal axes.

Step 2- Mark the mid value of each interval on the horizontal axes.

Step 3- Mark the frequency of the class on the vertical axes