Plotting the spread of the results on the graph helps you to identify precision - not accuracy. Accuracy relates to how correct your results are - not your ability to get the same answer each time!

Why is it advantageous to plot data in a graph?

Graphs show trends, gaps and clusters, and compare multiple data sets at once, often accommodating large sets of data. ... They make it easy for scientists and students alike to form hypotheses and draw conclusions.

Why is it important to plot data correctly?

Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space. ... If the data shows pronounced trends or reveals relations between variables, a graph should be used.