Tuesday, October 6, 2009

April's scribepost for Oct.6,2009 BOB

3 Things I Know About Graphing.

#1:Different types of Graphs:

-Bar Graph
-Line Graph
-Pictograph
-Circle Graph

-Double Bar Graph

Bar Graphs are best for comparing data across categories.


Line Graphs are best for showing changes in data overtime.

Pictographs are best for comparing data that can be easily counted and represented using symbols.

Circle Graphs are best for comparing categories to the whole using percents in a circle graph is 100 %.

Double Bar Graphs are best for comparing two sets of data.




#2:Misrepresenting the data.

Distorting the scale- make some scales wider or slimmer.
Putting breaks and changing the intervals- it makes the data look closer or farther away from each other.
Changing the colour of the bars- makes people pay attention to that part.

#3:Disadvantages.

Bar Graph- If the intervals are spread out too much, it would be to hard to represent the data.
Line Graph- You don't know where the dot exactly is, unless you are going up by ones.
Circle Graph- It doesn't show the exact numbers, because it uses percents.
Pictograph- It is not exact. And you don't know what half is.

What I need to improve on:


I need to improve on explaining my graph more precisely. I need to make a longer paragraph, a better description and I need to put a trend, or a prediction.

1 comment:

Mr Montgomery said...

Hi

Its Mr Montgomery from Australia here.

I am very impressed with the quality of your blog posts.

They are a great model for my year 8s

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