He should enter the test results from each week into a spreadsheet and create a line graph.
Line graphs are best for recording progress.
Answer:
He should enter the test results from each week into a spreadsheet and create a line graph.
Explanation:
A line graph displays a series as a set of points connected by a single line.
The line graph is especially suitable when you want to view trends and movements over time when dimension values are evenly spaced, such as months, quarters, or fiscal years.