The ways the graph could be improved include
In statistics, graphs are used to represent data sets in a visual way.
Some features of a good graph include
From the given graph (see attachment), we have the following highlights:
The graph can be improved by labelling the axes and starting the entries on y-axis from the origin (i.e. from 0
Read more about graphs and charts at:
https://brainly.com/question/24741444