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TRANSCRIPT
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Judith Self
Special Ed. Resource
Symsonia Elementary
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Organizing Data by:
Using Line Plots
Describing Data (mean, median,mode,
and range)Making Charts or Graphs(bar
graphs,circle graphs,pictographs,line
graphs)
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Line Plots
Line plots are diagrams that organize
data on a number line
If your data is numerical, one way toshow it would be with a line plot
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Heres a way to make a line
plot.
Find the least and the greatest numbersin your set of data for your line plot.
Choose a sequence that will fit yourdata.( arrange the numbers by 2s, 5setc.what ever works best for your data)
Put an x on the line plot to represent
your dataWrite a title for your line plot.
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Describing data
Mean
Median
Mode
Range
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Mean/Average
To find the mean oraverage of a set ofdata you first :
Add the numbers Count the number of
data
Divide the total of
the numbers by thenumber of data.
6,4,6,5,7,7,4,9=48
There are 8 sets of
data
Divide 48 by 8 = 6
To check, 8 x 6= 48
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Median
The median number ofa set of data is thenumber found in themiddle.
Arrange your data inorder from least togreatest to find themiddle number.Sometimes you willhave two middlenumbers.
4
4
5
6
6
7
7
9
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Mode
The mode of a set of data is the number
that occurs most often in the data.
You may have more than one mode.4,6, and 7 are your modes in this set of
data.
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Range
The range of a set of data is found by
subtracting the least number from the
greatest number.
9 4 = 5
In this set of data the range is from 4 to
9 with the exact range of 5.
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Making Charts and Graphs
0
10
20
30
40
50
60
70
80
90
1st
Qtr
3rd
Qtr
East
West
North
Bar graphs are
another way to show
data.
Double bar graphshelp you to compare
data.
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Line graphs
Line graphs are
good for showing
changes in data
over time whenworking with dates.
Double line graphs
can help you showeven more data and
compare data.
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Circle graphs/Pie Charts
Circle or pie charts
are another way to
show data, and
compare data topercentages or
fractions of a whole.
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Pictographs
Pictographs are
often used to show
data in newspapers
and magazinesbecause they get
your attention.
Each picture
represents a specific
number of data.
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In conclusion
Organizing data makes it easier to readand understand.
Using graphs and charts helps to get
the attention of your audience
Charts, line plots and graphs are waysto organize data so it is useful to you.
Comparing data is easier when it isclear and specific.