By: Micah Pollak, Indiana University Northwest
Pre-Test Question:

Chapter 8. Unconstrained Optimization

Math and Graphing Review
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You must read each slide, and complete any questions on the slide, in sequence.

What type of graph is this?
Correct! Each point represents a combination of distance travelled and water drunk.
Sorry, the correct answer is a scatterplot. Each point represents a combination of distance travelled and water drunk.
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          1.

          What type of graph is this?
          Correct! The graph compares the distance individuals ran using vertical bars that represent distance in miles.
          Sorry, the correct answer is a bar graph. The graph compares the distance individuals ran using vertical bars that represent distance in miles.

          2.

          Suppose you wanted to show in a graph the proportion of your day that you spend doing different activities. Which graph would be the best way to present this?
          Correct! A pie chart would be the best way to present the proportions of a whole.
          Sorry, the correct answer is a pie chart. A pie chart is the best way to present the proportions of a whole.

          3.

          Suppose you wanted to compare the unemployment rate and household income between years 2008 and 2015. What type of graph would be the best way to present these data?
          Correct! A multiple line graph works best to compare multiple series over time on the same graph.
          Sorry, the correct answer is a multiple line graph. A multiple line graph works best to compare multiple series over time on the same graph.

          4.

          What type of graph is this?
          Correct! The graph shows a single series over time.
          Sorry, the correct answer is a line graph. The graph shows a single series over time.

          5.

          Suppose you wanted to compare the heights and weights of a dozen people. What type of graph would show these data most effectively?
          Correct! Each point in a scatterplot represents a combination of two variables, such as height and weight.
          Sorry, the correct answer is a scatterplot. Each point in a scatterplot represents a combination of two variables, such as height and weight.