Monday, May 24, 2010

Find the mean, median, mode, range, and outliers

a. 12 , 20 , 18 , 15 , 10 , 10 , 12
b. 48 ,32 ,67 ,61 ,47 ,95 ,89 ,888 ,1

First (order)
a. 10 ,12 ,12 ,15 ,18 ,20
b. 1 ,32 ,47 ,48 ,61 ,67 ,89 ,95 ,888

a. mean: 14.5 b. mean: 147.56
median: 13.5 median: 61
mode: 12 mode: no mode
range: 10 range: 887
outlier: no outlier outlier: 888, 1

Effect of outliers

Some outliers need to be removed from a data set. This is typically a judgement call.

Outliers have an effect on all measures of central tendency.

http://www.schooltube.com/video/85e9382853d3425594fd/Mean-Median-Mode-Range-Outliers

Homework- Page 444-445 numbers 1-8

www.mytextbook.ca

1. Good job Cathelene:)

2. Good job Cathlene. I like how you used different colours for the words mean, median, mode, range, and outlier. If you had to improve on something I think you would have to make the font bigger for the text after "Effect of Outliers".(:

3. Great job Cathlene. I loved the use of colour. But some of your font was a little small. Thanks for the reminder of the homework. (:

4. Nice post Cathlene! I liked how you used the colours to show mean, median and mode, they looked great:) I also liked how you put a link for us, keep up the good work:D

5. Oops! I forgot to mention the range and outliers too. Sorry:/

6. Good Job Cathlene. I liked it when you used different colours when there is something important. The last thing u liked is about the reminder. Anyway Excellent Job ! Keep it up :]

7. Good job, Cathlene! I really liked you font and the fact that you changed colours, really stood out to me. So that was good. But next time add some pictures to help extend others' knowledge.

8. Great job! You explained outliers nicely and I liked how you changed the colours and font size for some important words and the homework reminder.

9. Good Job! I like the way you used the colors with the font and you explained everything well. Good Job!

10. Good job I like how you used alot of colour to show or explain other things.
Maybe next time you should get a picture or two. Well either than that, GOOD JOB

11. Good job Cathlene :) I liked your colours although your font was a bit small. Instead of putting the link, you should've just posted the video here. Other than that.. nice post!

12. Good job, Cathlene! You included everything, and i liked your colors and thanks for the link! If you were to change anything, some fonts were a bit too small. Anyway, nice job!

13. I loved how you used bright colours like red so it stood out but next time make the writing bigger. good job Cathlene.
-Sophia:)

14. Great job Cathlene. Your post was very good and easy to read. It was very colourful and I liked how you gave the measures of central tendency each a specific colour. However, you could have put in a picture showing how you found the answers, and you could have embedded the video. Still, good job. =)

15. Sweet post! You had rad info and I liked how you put the mytextbook thingy majigy website on the blog so yaaaaaa!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

16. good job cathlene. you did a awesome job. you put good colour. next time put pictures but then other then that good job

17. good job cathlene i like ur colures you should add a video or something next time to make even better put other then that awsome job

18. Good job Cathlene. A really nice post with colours and all the notes. Great post!

19. Good post Cathlene(: Your post was colourful and your video was good. Next time, maybe have a picture.

20. Good job Cathlene! I like the colors you used and the video. And I agree with Vincent, picture next time. :) *Oh wait.. it's June. ;D

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22. Good job Cathlene I like the colour