For this case we have a very useful tool is to make use of a graph.
To make use of a graphic you need two things fundamentally:
1) Define the independent variable: normally placed on the horizontal axis
2) Define the dependent variable: normally placed on the vertical axis
Then, when plotting the obtained data, the behavior of both variables can be observed, revealing the unexpected pattern.
Answer:
One useful tool that may help a scientist interpret data by revealing unexpected patterns is a:
b. graph.
