This activity is intended to supplement Algebra I, Chapter 11, Lesson 8.
June collected the distances she drove each weekend for 30 weekends. The distances, stored in the list WKND, are listed below.
Part 1 – Create a Box Plot
Create a box plot of the distances.
Press TRACE to view the values of each section of the plot.
1. Minimum: ____ Q1: ____ Median: ____ Q3: ____ Maximum: ____
2. Why is the first whisker so short? What does it mean for the other whisker to be so long?
3. What does the median value say about the distances traveled? Since this point is the “middle” point in the data, why is the box plot not balanced at this point?
Where is the mean located on this plot?
Part 2 – Create a Histogram
Create a histogram of the distances.
Press GRAPH. Press TRACE and use the arrow keys to view the number of entries per bar.
8. Where are the median and mean on this plot?
Part 3 – Compare a Box Plot and a Histogram
10. How does the shape of the histogram compare to the shape of the box plot?
11. How does the tallness of the first bar relate to the shortness of the first whisker?
12. What do you see now about why the other whisker is so long?