

Line Graph Analysis and Creation
A Picture is Worth a Thousand Words
Print this page and use it to complete the lesson.
Line Graphs  Analysis of Data:
1. Go to http://www.bls.gov/lpc/home.htm
(http://www.bls.gov/lpc/home.htm)
2. Answer these questions:
 What is the definition of productivity?
 Estimate the output and hours worked during the third quarter of 1992.
 Calculate output/hour during the third quarter of 1992. Locate this point on the graph. What do you notice?
 Do the same calculations for another quarter. What do you notice? Why?
 In the third quarter of 1997, why is productivity so low?
Line Graphs  Creation:
1. Go to http://www.ita.doc.gov/industry/otea/usio/usio95.html
(http://www.ita.doc.gov/industry/otea/usio/usio95.html)
2. Scroll down to "Trends." Select a product that is of interest to you. Create a line graph showing value per year.
3. Answer these questions:
 What was the best year for your product? The worst?
 Predict the value of your product for the next 3 years. Defend your prediction.




