Functions Defined by Data

Enter your names and today's date in the space below:

Part 5: Additional Data Sets

1. Manatees and Motorboats

Fill in these tables:

Now fill in the blanks in the graph below to make a scatterplot. Which variable blongs on the x-axis?

Change the graph so that it shows points, not lines. Use little circles for the points. Label your axes and give your graph a title.

Now describe what you see, and try to come up with an appropriate mathematical model for these data. Show some work and explain how you derived your model. (In particular, tell me which data points you used to get your model!)

If there were 60,000 motorboat registrations, how many manatee deaths would your model predict? Show your work.

Now switch typists.

2. The Summer Olympics

Fill in the following tables:

Now get Mathcad to draw an appropriate graph and use a mathematical model to answer the question posed in the instructions. (If you ever need to add more blank lines in a Mathcad worksheet, just press Enter.)

If you like, you may switch typists again.

3. Cell phones

Enter the data, draw a graph, and describe what you see. Answer the questions in the instructions.