Answer:
They sound like objectives for a unit of a math or economics class.
Explanation:
Data collection would most likely mean analyzing collected data (looking for trends).
Constructing graphs would probably mean making graphs from a set of data (plotting the information).
Interpreting graphs would mean the opposite of the above definition: would look at a graph and then put that information into written form/
Drawing a line of best fit means making a line on a graph that represents the average of all of the data on the graph.
I hope that this helps!