## Thursday, January 22, 2009

### Scribepost for January 22, 2009

Today in math we had a test on measures of central tendency.

The test was out of 42 with questions about mean, median, mode, range, and outlier.

Mean: The sum of the numbers in the data set divided by the total numbers of numbers in the data set.

eg. 10,14, 20, 9. 10 + 14 + 20 + 9 = 53 ------> 53 / 4= 13.25 ------> 13.25=mean

Median: The number in the middle of the data set.

eg. 8, 11, 14, 17, 23. / The middle in the data set is 14.

Mode: The number that appears most in a data set.

eg. 12, 9, 5, 9, 9, 15. The mode is 9.

Range: The number you get when you get the highest number and the lowest number in the data set then subtract the highest number by the lowest number in the data set.

eg. 5, 10 , 15, 20. --------> 20 - 5 = 15 ----------> The range is 15.

Outlier: The number that is greatly lower or greatly higher than the other numbers in the data set.

eg. 14, 13, 79, 17, 21. The outlier is 79.

After you are done your test you were supposed to do your number of the day.

Today's number was 3179.269 remember number of the day is homework everyday.

If you finished your number of the day you were supposed to do a math problem.

If you did not finish this during class time it is homework.

I choose Ezekiel for the next scribe.

Harvey743 said...

You made your post very neat. Thank you for telling us what number of the day is and your picture was great.

Patricia43 said...

Good job Eric!!! You explained every thing very well. It was very easy for me to understand your scribe!!! I like your picture very much!!! Good job again!!!

Ezekiel743 said...

nice job Eric I like the picture you picked put in the scribe post

elijah743 said...

whoah ! good job. Plus explaining the central of tendency, like, median,mode,range,mean and outlier.the picture is really nice ! by the way nice colour.

Harvey743 said...

Are there no rules for the home work? (picture)

Eric43 said...

Harvey the rule is the total is 160

Allysa43 said...

Good job Eric! It had everything we did today and your colors were really cool,you highlighted the really important ones. You also wrote the number of the day stuff and that it was homework everyday! Again, GOOD JOB!

april43 said...

very well done eric! your scribepost was neat, and easy to understand. that's all i have to say! good job!! (:

melanie873 said...

Great job, buddy! Everything was very understandable, and I liked your picture. Your very organized, buddy (: Well, great job again!

jim 7 43 said...

nice job eric...i like how u did the picture:D

Allen 7-43 said...

Great Job Eric. I like how you did on colouring da important words and the Picture (How u did it) every understandable

Brendan743 said...

Good job eric ! Everything was easy to read. The picture was very understandable. Anyways , good job Eric

Deniel7-43 said...

Nice job Eric same thing you did like mine with no labels....
But its GREAT! Nice information about the measures of central tendancy :) Oh and nice explaining on The number of the day it was great! (>^.^)><(^.^<)

Nice job!

charity743 said...

wow that was very good erick
you explained it very nice

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good job

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elmane8-73 said...

Great job! Your Scribe was very clear and organize. And nice picture by the way!

emmanuel743 said...

Wow, really good job eric. I like how you made your blog neat and used colour to show the definition for the words. I also liked your picture. Good job again

sierra43 said...

Good job. It was very neat and organized. You explained it very well, I don't think you need much improvement! Great job!

giuseppe743 said...

wow your scribe is very good, you explained everything and it was so neat. i like your picture very much, good job!

Zerlina 873 said...

Great job Eric! I really liked you scribe post, it was spectacular. It was very organized too. You used colour too, and very easy to read. But you should add another picture because lots if scribes have the same picture, but I'm not saying you should delete it, you should add another one. Great job again!

Chantell743 said...

Great job Eric. It was all very understandable, and the colours help make things stand out. :)

tamika743 said...

very good job. you explained everything good. I also liked how you used colours.
good job

Jemineth43 said...

Good Job Eric ! You made your post neat and understandable to read .. You used different Colours for the different " Measures Of Central Tendency" and you added the picture of the shapes, that we figured out that day .

Sharmaine743 said...

good job eric. your work is neat and well explained. your picture is very nice.

dakota7-43 said...

i liked how you made the words in red.
good job

jamieq36 said...

Good job Eric! You explained things very well, and you put colours to make it stand out. Great picture & you explained everything we did on that day very clearly. Great job again Eric!

kathleen743 said...
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kathleen743 said...