# 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