Transcript Creating Graphs

Creating Graphs
By Your Fabulous Math
Teacher, the one and only,
MS. COLEMAN
Where Does the Information
Come From?

A question is asked.
What kind of ice cream does
everyone like in our class?
How Is the Information
Gathered?

A survey is made.
Chocolate
Vanilla
1111 1
111
Strawberry
1111
Mint & Chip
1111 11
Rocky Road
11
Bubble Gum
1
Tally Charts
 Typically,
a tally
chart is used
when several
things are being
counted at once,
such as in a
survey.
How Is the Information
Presented?
A bar graph is made.

7
6
5
4
3
2
1
0
Chocolat Vanilla Strawberr Mint & C Rocky R Bubble G
Students
How Is the Information
Presented?
A bar graph is made.

7
6
5
Chocolate
Vanilla
Strawberry
Mint & Chip
Rocky Road
Bubble Gum
4
3
2
1
0
Students
How Is the Information
Presented?


When you want to compare data, display it on a bar
graph.
A double bar graph can be used to compare two sets
of data, usually about the same topic.
 What
is this double
bar graph represent?
How Is the Information
Presented?

Line plots are another way to organize data
as it is being collected. The line plot below
shows the amount of money 8 students
spent on snacks.
How Is the Information
Presented?

A pie chart is made.
Bubble Gum
Rocky Road
Chocolate
Mint & Chip
Vanilla
Strawberry
How Is the Information
Presented?

A pie chart is made.
Students
Chocolate
Vanilla
Strawberry
Mint & Chip
Rocky Road
Bubble Gum
How Is the Information
Presented?

A line graph is made.
7
6
5
4
3
2
1
0
Chocolate
Vanilla
Strawberr Mint & Ch Rocky Ro Bubble G
Students
Line Graphs Continued

Line graphs are used to show how data
changes over time. The line graph below
shows the change in temperature
from 5:00 A.M
to 8:00 P.M.
How Is the Information
Presented?

A pictograph is made.
Chocolate
Vanilla
Strawberry
Mint & Chip
Rocky Road
Bubble Gum
Mode and Median

Mode is the number that occurs most often in a data set.
 Some data sets have don't have a mode; others have
more than one mode.
 The mode for the amount of money students spent is
$4.

The median is the middle number in a data set that is
ordered from least to greatest. When there are two middle
numbers, the median is the mean of these two numbers.
 $1
$1 $2 $3 $4 $4 $4 $5
 $3 + $4 = $7
$7 ÷ 2 = $3.50
 The median for the amount of money students spent is
$3.50.

Range
Range is the difference between the greatest
and least number in a data set.
 The range for the amount of money students
spent on snacks is $5 – $1, or $4.
