Download presentation

Presentation is loading. Please wait.

Published byEvan Parks Modified over 3 years ago

1
Box and whisker diagrams

2
A box and whisker diagram 2 Click on the loudspeaker symbol in the title box of this slide to hear the commentary..

3
A box and whisker diagram 3 Click on the loudspeaker symbol in the title box of this slide to hear the commentary. 25% of data

4
30 120 A set of test results in a box and whisker diagram 4 85 6040 Click on the loudspeaker symbol in the title box of this slide to hear the commentary.

5
The terminology! 5 upper quartile medianlower quartile lower extreme upper extreme The five points on a box and whisker plot gives you the upper & lower extreme values (numbers) of the data (the range or spread of the data), the upper & lower quartiles (the interquartile range or spread of the middle 50% of the data) and the median (centre point of the data). (Click on the loudspeaker symbol in the title box of this slide if you want to hear the commentary. Then listen to the recap on the next slide).

6
Video 01…….0.28 – 1.27 Click on the image below to play the video

7
30 120 Quick recap questions: 7 85 6040 1.What is the range of the test data? 2.Give the median mark for the test. 3.What is the interquartile range of the marks ? Answers on next slide.

8
30 120 A set of test results in a box and whisker diagram: some initial questions 8 85 6040 1.What is the range of the test data? Ans: 120 – 30 = 90 2.Give the median mark for the test. Ans: 60 3.What is the interquartile range of the marks ?. Ans: 85 - 40 = 45 (the range of the middle 50% of the class.)

9
Click on the image below to play the video

10
Question on range of data: A box and whisker plot appears below. Work out the range of the data shown below:

11
Click on the image below to play the video

12
Answer: A box and whisker plot appears below. The range of the data is: Answer: 83 (Not 17-100 although that is a common mistake. The range is a single number so taking the highest value, subtract the lowest value. In this case 100 – 17 = 83.)

13
Click on the image below to play the video

14
A box & whisker question: median The box & whisker chart opposite shows absence data for five year groups in term one. Which year group had the smallest median number of absences? Absence data for term 1 Number of absences

15
Click on the image below to play the video

16
Answer: The box & whisker chart opposite shows absence data for five year groups in term 1. Which year group had the smallest median number of absences?

17
Click on the image below to play the video

18
A box & whisker question on range: The box & whisker chart opposite shows attendance data for five year groups in term one. Which year group had the smallest interquartile range of absences? Absence data for term 1 Number of absences

19
Click on the image below to play the video

20
Answer: The box & whisker chart opposite shows attendance data for five year groups in term one. Which year group had the smallest interquartile range of absences?

21
Click on the image below to play the video

22
Another box & whisker question: The box & whisker chart opposite shows attendance data for five year groups in term one. Which year group had half of its members recording 6 or more absences? Absence data for term 1 Number of absences

23
Click on the image below to play the video

24
Answer: The box & whisker chart opposite shows attendance data for five year groups in term one. Which year group had half of its members recording 6 or more absences?

25
Click on the image below to play the video

26
Another box & whisker question: The box & whisker chart opposite shows attendance data for five year groups in term one. Which year group had over three quarters of its members recording 6 or more absences? Absence data for term 1 Number of absences

27
Click on the image below to play the video

28
Answer: The box & whisker chart opposite shows attendance data for five year groups in term one. Which year group had over three quarters of its members recording 6 or more absences?

29
Thank you For further sources of support and practice on box and whisker diagrams, look at the next slides.

30
http://www.bbc.co.uk/schools/gcsebitesize/maths/statistics/representingda ta3hirev6.shtml http://www.education.gov.uk/schools/careers/traininganddevelopment/pr ofessional/b00211213/numeracy/areas/box-and-whiskers https://www.khanacademy.org/math/probability/descriptive-statistics/Box- and-whisker%20plots/v/reading-box-and-whisker-plots http://www.youtube.com/watch?v=QXp596gfG3c Need things explained again?

31
http://www.brainingcamp.com/resources/math/box-plots/questions.php http://www.jmap.org/JMAP/RegentsExamsandQuestions/PDF/WorksheetsByPI- Topic/IntegratedAlgebra/Statistics_and_Probability/A.S.6.BoxandWhiskerPlots1. pdf http://studentzone.roehampton.ac.uk/howtostudy/onlinemathsmaterials/download ableworksheets/tdamaths/bw&cumulative.pdf Box and Whisker worksheet – Word document to download Want to practise? 31

32
Good luck! 32

Similar presentations

OK

WHAT DO THEY ALL MEAN?. Median Is the number that is in the middle of a set of numbers. (If two numbers make up the middle of a set of numbers then the.

WHAT DO THEY ALL MEAN?. Median Is the number that is in the middle of a set of numbers. (If two numbers make up the middle of a set of numbers then the.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on sports day speech Ppt on condition monitoring definition Ppt on stock market free download Export pdf to ppt online convert Ppt on power generation by speed breaker india Ppt on abstract art paintings Ppt on thermal conductivity of insulating powders Ppt on economic order quantity equation Ppt on 3 phase rectifier Ppt on review writing strands