1. Box Plots Show the Spread of Data BOX PLOT NOTES

2. What is a Box Plot? A box plot is a visual representation of a set of numbers. It’s main goal is to show the of the numbers on a number line. SPREAD

3. How do I make a Box Plot? 1. Order your data from least to greatest, and find the 2. Split the data in, so that you have an half and a half. If you have 1 median you do not include it in your lower or upper half. If you have 2 medians you do include them in the upper and lower half MEDIAN HALF UPPER LOWER

4. How do I make a Box Plot? 3. Now, find the if the lower half and the upper half. The median of the lower half is called the lower and the median of the upper half is called the upper. 4. Next, identify the smallest number and the biggest number in your set of data. These numbers are called the and the. MEDIAN QUARTILE MAXIMUM MINIMUM

5. How do I make a Box Plot? Create a of your data. It is helpful to use a table like this: 5 NUMBER SUMMARY MinimumLower Quartile MedianUpper Quartile Maximum

6. How do I make a Box Plot? Draw out a. Your number line should go from the lowest number in your set of data (minimum) to the highest number in your set of data (maximum). You must use the same on your number line!!! This means that your number line should go up by 1’s, 2’s, 5’s, 10’s, etc. NUMBER LINE INTERVAL

7. How do I make a Box Plot? Place a above your number line to represent all of the numbers in your 5-number summary. Draw a to connect the minimum to the lower quartile. Draw another line to connect the to the. Draw a to connect the lower quartile to the median. Draw another box to connect the to the DOT STRAIGHT LINE UPPER QUARTILE MAXIMUM BOX MEDIAN UPPER QUARTILE