Box and Whisker Plots To the tune of: Verse 1 So, sit right back and I’ll tell a tale. A tale of a guy named Scott. He figured out the way to draw a Box and Whisker plot Repeat (A box and whisker plot) Verse 2 He said, “Take your pencil and write the numbers In order from least to great.” Then find the number in the middle and draw a line through it. Repeat: Yes, draw a line through it. 10 19 25 28 29 29 30 32 32 34 34 35 36 40 45 55 58 72 Median: 33 Verse 3 This number is called the median It splits the data in half. We call the left the lower half And the right the upper half. Repeat: The right is the upper half. 10 19 25 28 29 29 30 32 32 34 34 35 36 40 45 55 58 72 Median: 33 Verse 4 Now, concentrate on the lower half. It takes a little while. Circle the number in the middle. It’s called the lower quartile. Repeat: (It’s called the lower quartile) Verse 5 Now, switch your attention to the other half. And do it with a smile! Circle the number in the middle, It’s called the Upper Quartile. Repeat: (It’s called the Upper Quartile) Verse 6 This is so exciting now. Because we’re almost done. We need to write four numbers in a row On a number line. Repeat: (on a number line) Verse 7 Start by plotting the two quartiles with the median in between Then draw a box around the three With the median in between. Repeat (With the median in between) Verse 8 So, something that will make you feel Like an intelligent person. Is if you can remember that The box is 50 percent. Repeat (The box is 50 percent) Verse 9 Hey, did you forget the whisker part? My teacher said, “That’s a sin!” You have to draw a line from the box That goes to the max and min Repeat: (A line that goes to the max and min) Verse 10 Next, we need to remember that The data on each whisker part Makes 25 percent of the plot And now we’re truly smart. Repeat (Yes, now we’re truly smart) Verse 11 So, that’s the end of our tale about Scott. NO, he really doesn’t exist. But now you can remember the steps Without writing a list. Repeat : (Without writing a list!)