1 / 8

13.8 Interpret Box-and-Whisker Plots

13.8 Interpret Box-and-Whisker Plots. Vocabulary. Box-and-Whisker Plot - a data display that organizes data values into four groups using minimum value, lower quartile, median, upper quartile, and maximum value. Quartile - dividing the data into four equal parts

mirari
Download Presentation

13.8 Interpret Box-and-Whisker Plots

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 13.8 Interpret Box-and-Whisker Plots

  2. Vocabulary • Box-and-Whisker Plot- a data display that organizes data values into four groups using minimum value, lower quartile, median, upper quartile, and maximum value. • Quartile- dividing the data into four equal parts • Interquartile Range- the difference of the upper and lower quartiles of a data set. • Outlier- a value that is widely separated from the rest of the data in a data set.

  3. Example 1 Make a box-and-whisker plot of the heights (in inches) of 7 family members: 34, 67, 70, 62, 46, 75, 54. Step 1: Order the data. Then find the median and quartiles. Step 2: Plot the median, the quartiles, the maximum value, and the minimum value below a number line. Step 3: Draw a _____ from the lower quartile to the upper quartile. Draw a vertical line through the ______. Draw a line segment from the box to the maximum and another from the box to the minimum.

  4. Example 2 Make a box-and-whisker plot of the data. • 10, 8, 2, 4, 3, 8, 6, 4, 5, 5

  5. Example 3 Interpret a box-and-whisker plot • The box-and-whisker plots below show the average high temperature (in degrees Fahrenheit) each month in Atlanta, Georgia and Orlando, Florida. • For how many months is Atlanta’s average high temperature less than 60°F. • Compare the average high temperature in Atlanta with the average high temperature in Orlando. • For how many months was the average high temperature in Orlando more than 84°F.

  6. Example 4 Identify an outlier • The average monthly high temperatures (in degrees Fahrenheit) in Atlanta are:52, 57, 65, 73 80, 87, 89, 88, 82, 73, 63, 55. These data were used to create the box-and-whisker plot in example 2. Find the outlier(s) of the data set, if possible.

  7. Example 5 Find the outlier(s) of the data set, if possible. • 22, 29, 15, 25, 9, 32, 49, 20, 33, 26, 19, 30

  8. Classwork/Homework

More Related