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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.