Unit 8 Lesson 2 Guided Notes
Video 5: Creating a Boxplot
Name ______________________________________
Directions: Please watch the lesson video and answer the questions below. Turn this
in to your classroom teacher when you are finished.
1. Review
In the last lesson we learned the _______ values that make up a ______ number
summary.
Those 5 values are:
_______________
_______________
_______________
_______________
_______________
The Interquartile Range (IQR) is the difference between ______________ and
______________.
2. A Box Plot is also called a ________________________________.
3. Fill in the parts of the Box Plot below:
4. A Box Plot uses ____________________________ to summarize large
amounts of data.
5. Label the 5 special values (dots) on the box plot below:
6. Because Q 1, median, and Q3 divide the data into quarters, that means
_______________ of the data lies between each of the dots on the Box Plot.
_______________ of the data lies inside the box.
_______________ of the data lies below the median.
_______________ of the data lies above the median.
7. Creating a box plot
1. Put the data in numerical order. Find the ______________________________.
2. Make a number line. Plot your _______________________ above the number
line.
3. Draw a ___________ from the ______________________ to the
__________________.
4. Draw a line _____________________ where the ________________ is located.
5. Draw a _____________________ from the left side of the box to the
______________________ (minimum).
Draw a _____________________ from the right side of the box to the
______________________ (maximum).
8. *Example 1* The following data represents temperatures from one week during the
month of September. Use the data to find the 5 number summary.
79, 84, 81, 77, 79, 82, 85
1. Find the five number summary
lower extreme
lower quartile
2. Create the box plot.
median
upper quartile
upper extreme
9. *You Try 1* Use the data set below to find the five number summary. Then find the
interquartile range (IQR).
1, 9, 2, 6, 8, 4, 7
1. Find the 5 number summary.
lower extreme
lower quartile
median
upper quartile
upper extreme
2. Create the box plot .
10. *Example 2* The following data represents how many free throws in a row the
members of the basketball team made during practice. Use the data to find the 5
number summary.
3, 7, 8, 5, 12, 14, 21, 15, 18, 14
1. Find the 5 number summary.
lower extreme
lower quartile
2. Create the box plot.
median
upper quartile
upper extreme
11. *You Try 2* Use the data set below to find the five number summary. Then find
the interquartile range (IQR).
1, 1, 9, 2, 6, 8, 9, 4, 10, 14
1. Find the 5 number summary.
lower extreme
lower quartile
2. Create the box plot.
median
upper quartile
upper extreme