March Holidays 2010 Workshop
Download Your Copy Now!
Recent Event: 2009 Graduation BBQ
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
14
E-Math: 5 Features of Box and Whisker Plot You Must Know
4 Comments | Posted by alwaysLovely in E-Math
Link to what was previously discussed in Statistics (an Elementary Math E-Math topic) in Drawing & Understanding of Cumulative Frequency, here are the 5 features for a Box & Whisker Plot (I guess you would know which part represents the box, and the portion which are the whiskers)
- Minimum
- Lower Quartile, Q1
- Median
- Higher Quartile, Q3
- Maximum
Note the difference between these 2 terms:
Range = Max – Min
Interquartile Range (IQR) = Q3 – Q1
Related Posts:
- E-Math: Summary of Cumulative Frequency & Box Whisker Plot
- E-Math: How to Use the Mean and Standard Deviation Formula (Plus: Calculator Shortcuts)
- Need graph paper but had none at home!
- E-Math: Drawing and Understanding of Cumulative Frequency Curve (Step by step working included)
4 Comments for E-Math: 5 Features of Box and Whisker Plot You Must Know
singaporeolevelmaths | Drawing and Understanding of Cumulative Frequency Curve (Step by step working included) | January 14, 2009 at 10:47 pm
Anon | January 21, 2009 at 9:38 pm
I think you’ve forgotten the outlier but i’m not sure if the singapore examination system covers them. E.g. if the exams marks for a class are 80+/- 10, and one person gets a say, 34 (unfortunately), a long line till 34 would misrepresent the data. Or to quote some website on the net:
“Sometimes there is ONE piece of data that falls well outside the range of the other values. This single piece of data is called an outlier. If the outlier is included in the whisker, readers may think that there are grades dispersed throughout the whole range from the first quartile to the outlier. “
alwaysLovely Reply:
January 30th, 2009 at 2:19 pm
Hi Anon,
Thanks for the add on, it’s not required to know about the concept of outlier in Singapore.
:)
E-Math: Summary of Cumulative Frequency & Box Whisker Plot | March 3, 2010 at 10:19 pm
[...] E-Math: 5 Features of Box and Whisker Plot You Must Know [...]
Leave a comment!
<< A Goodie For You! Monthly Math Exam Papers Questions (With Answer Key Included)
[...] In my next post, I will be discussing the features of box and whisker plot. [...]