Box and Whisker Plots

# Box and Whisker Plots

Télécharger la présentation

## Box and Whisker Plots

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
##### Presentation Transcript

1. Box and Whisker Plots Review each section and fill in handout. When done take assessment below Assessment: Make your own Box and Whisker Plot By: Alexander Finley

2. Box-and-Whisker Plots Box-and-whisker plots show the distribution of data. 10 20 30 40 50 60 70 A B C D E F A is an outlier. These are extreme numbers not part of data B is the least value if there is not an outlier C is the first or lower quartile . 25% of the data is below this value D is themedian or second quartile. 50% of the data is both above and below this value E is the third or upper quartile. 75% of the data is below this value F is the greatest value. Therange.is the difference between least and greatest values. Click Mouse to Reveal Each Letter’s Name and Definition

3. Interpret Box-and-Whisker Plots Skateboards Sold 0 10 20 30 40 50 60 Sports Stuff 1. Label the Box and Whisker plot above 2. What is the Lowest Value __________ Lower Quartile _________ Upper Quartile _________ Median __________ Range __________ Check your Answers on Next Slide If you get stuck, click left arrow to review

4. Interpret Box-and-Whisker Plots Skateboards Sold 0 10 20 30 40 50 60 Sports Stuff 1. Label the Box and Whisker plot above 2. What is the Lowest Value=10 Lower Quartile=25 Upper Quartile=40 Median= 35 Range=40 How did you do?

5. Interpret Box-and-Whisker Plots Skateboards Sold 0 10 20 30 40 50 60 Sports Stuff Mia’s Sports Which store had the least sales of skateboards? Which store had a greater range in sales of skateboards? Which store had a median of 35 skateboards sold? What is the lower quartile for Mia’s Sports? What is the upper quartile for Sports Stuff? Check Answers on Next Slide

6. Interpret Box-and-Whisker Plots Skateboards Sold 0 10 20 30 40 50 60 Sports Stuff Mia’s Sports Which store had the least sales of skateboards? Mia’s Which store had a greater range in sales of skateboards? They are the Same Which store had a median of 35 skateboards sold? Sports Stuff What is the lower quartile for Mia’s Sports? 15 What is the upper quartile for Sports Stuff? 40 Great Job! Click the right arrow to learn about the upper quartile!

7. Finding the Upper QuartilePlease follow along and fill in handout2, 4, 6, 8, 10, 12, 14 Find the median, place a triangle around it, click mouse one time to reveal. Remember, if there is an odd number of values the median is in the middle. If there is an even number of values, take the two in the middle, add, and divide by two. Click the right arrow for the next step

8. Finding the Upper Quartile2, 4, 6, 8, 10, 12, 14 You found the median, now find the upper half! All the numbers to the right of the triangle make the upper half, place a square around the upper half, click once to reveal Click the right arrow for the next step

9. Finding the Upper Quartile2, 4, 6, 8, 10, 12, 14 You found the upper half! Now find the upper quartile! To find the upper quartile, find the median of the upper half which are the numbers in the square. Click the mouse once to reveal! Did you get it right on your handout? Click the right arrow to learn about the lower quartile!

10. Finding the Lower QuartilePlease follow along and fill in handout2, 4, 6, 8, 10, 12, 14 Find the median, place a triangle around it, click mouse one time to reveal. Remember, if there is an odd number of values the median is in the middle. If there is an even number of values, take the two in the middle, add, and divide by two. Click the right arrow for the next step

11. Finding the Lower Quartile2, 4, 6, 8, 10, 12, 14 You found the median, now find the lower half! All the numbers to the left of the triangle make the lower half, place a circle around the lower half, click once to reveal Click the right arrow for the next step

12. Finding the Lower Quartile2, 4, 6, 8, 10, 12, 14 You found the upper half! Now find the upper quartile! To find the lower quartile, find the median of the lower half which are the numbers in the circle. Click the mouse once to reveal! Did you get it right on your handout? Click the right arrow to learn how to make your own box and whisker plot

13. How to make a Box and Whisker Plot2, 4, 6, 8, 10, 12, 14 Place a vertical line at your median, upper quartile and lower quartile on your handout If you need help finding, click the home button and review the sections on upper and lower quartile Click mouse once to reveal answer, click right arrow to move to next step

14. How to make a Box and Whisker Plot2, 4, 6, 8, 10, 12, 14 Now place horizontal lines at the top and bottom of the vertical lines to make your box Click mouse once to reveal box, click right arrow to move to next step

15. How to make a Box and Whisker Plot2, 4, 6, 8, 10, 12, 14 Great! Now you just need to add your whiskers to show the least and greatest values! Click mouse once to reveal! Click the right arrow to try and make box and whisker plot on your own!

16. Assessment Using the following data please make your own box and whisker plot. When finished please see me to review. 4, 7, 9, 10, 12, 13, 14, 18 If you need help please click home button and review how to make a box and whisker plot.