Saturday, May 22, 2010

Effects of Outliers

Find the mean, median, mode, range, and outliers of the following data sets.

a) 12, 20, 18, 15, 10, 12

First you have to reorder the data set from least to greatest. 10, 12, 12, 15, 18, 20

mean= 14.50 (always round to 2 decimal places.)

median= 13.5

mode= 12

range= 10

outlier(s)= none

b) 48, 32, 67, 47, 95, 89, 888, 1

First you have to reorder the data set from least to greatest. 1, 32, 47, 48, 61, 67, 89, 95, 888

mean= 147.56 (always round to 2 decimal places.)

median= 61

mode= 152.78

range= 887

outlier(s)= 1 and 888


Effects 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.


Here is a link that may help you understand outliers better.


HOMEWORK: pgs. 444-445 1-8



20 comments:

  1. Great post, Emily. I liked how it's neat and organized and thanks for putting up the homework. Good job!

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  2. Nice post Emily. I like that it is organized and I like the link. Great post!

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  3. Good job Emily. It is very neat, organized, and easy to understand. The way you changed the color of some of the words made them really stand out. Great post!

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  4. GOod Job Emily I liked the video and colour

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  5. Great post, Emily P. It's really easy to understand. There is no improvement to be done on this post. Thank you for posting up the homework!

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  6. Great post Emily! It's very organized and easy to understand. I don't know of any things you can improve on in this post.

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  7. Exellant post emily P! i couldn;t find anything wrong.

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  8. Great post Emily. I liked how you highlighted some of the important words. I don't really see any thing wrong with this post. Awesome work!

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  9. Good Job Emily! It's very neat and organized. Thanks for putting up the homework

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  10. Great post Emily, everything is really neat! I also like how you chagned some of the font colors.

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  11. Good job Emily! I like how you used other colours. It was also very well organized.

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  12. good post, its well organized

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  13. Great post, Emily! It's very well done and organized.

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  14. good post , i like how it is very well organized

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  15. Great post i realy like the pictures!

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  16. Good job Emily. It was well done and very organized.

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  17. Good job Emily ! I like how you organized everything.

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  18. Nice Post Emily, it was really organized.

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  19. Nice post Emily! I like how it is very neat and colourful.

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