Data Displays

How to make your favorite data display?

Circle Graphs-

Start with a table for Categories, Frequency, Percentages, and Angle Measures.
Use a compass to draw the circle and form sectors using a protractor and the angle measures.
Label the circle graph with categories, percentages and colors for each sector.

Example- What is your favorite color?

Category- Blue; Frequency- 4


Percentage- 4/10 = 40%


Angle Measure- .40*360= 144 degrees


Interactive Website: Making a Histogram. Online resource to use- Illuminations Webpage

Find the range of your data and determine your intervals. Make a data table with Intervals and Frequency (number of data points in those intervals). Label your vertical (y-axis) with frequency and the horizontal (x-axis) with the intervals in your table. The bars on your histogram should touch each other and run continuously along the x-axis. Label your histogram with a title and label for your horizontal axis to represent the meaning of the data.

Example: Weekly Hours of Practice: Data 12, 21, 16, 18, 31, 25, 8, 22
Intervals 0-9, 10-19, 20-29, 30-39
Frequency 0-9 =1, 10-19 =3, 20-29=3, 30-39=1

The circle graph and histograms are both interesting visual graphs that show comparisons.
One key difference is the histogram can show the frequency of an event or how many times it falls within a certain interval. What other situations or data sets could you use for circle graphs or histograms? What tips can you offer to display data in a clear and entertaining way?