Charts
Introduction
to Charts
Pie Chart or Circle Graph
•
Show the relationship of
a part to the whole
•
For example:
–
Show how you spend your
day (24hours)
–
Percentage of voters
Line Graph
•
Chart things that change
over time
•
Information is
represented by a point on the graph
•
Information does not
have to start at zero
–
Points are joined by
lines starting from the first point at the left of the graph
•
EXAMPLES:
–
Quizzes over a period of
time, stock market, KYB speed and accuracy
Line Graph
Bar Graphs
• Used
to compare the relationship between things
• Starts
at zero
• EXAMPLES
– Mile run times
compared by class, student, etc.
– How much each
class raised in the fundraiser
Bar Graph
Pictograph
•
Shows a relationship
between things
•
Can start at zero, but
doesn’t have to
•
Symbols represent a
specific number of objects
–
Make sure you explain
what the symbols represent
•
Can represent large or
small numbers
–
Examples: how many books
read in a month, how many people ran a certain time in the mile
Pictograph
HOMEWORK
•
Create a survey with at
least 4 data items
•
Ask at least 20 people
to respond to your survey
•
Keep track of your
results
•
In class, we will chart
the data tomorrow
•
SURVEY
•
Have questions ready
•
Prepare a grid to
collect the data
•
And ask as many people
as you can
•
Keep track of all responses