BAR GRAPHS, DOUBLE BAR
GRAPHS AND HISTOGRAMS
Advanced Math 7
y-axis Rita’s Italian Ice Flavor Popularity
14
Number 12
of 10
Students
8
6
4
2
X-axis
Cherry Strawberry Blue
Mango Grape
Flavors Raspberry
Bar Graphs
• Bars are NOT touching each other
• Always label a title, and the x-axis and y-axis.
y-axis Teacher’s Ages at Lower Dauphin
7
Number 6
of 5
Teachers
4
3
2
1
X-axis
20-29 30-39 40-49 50-59 60-69
Ages
Histogram
• Must make a frequency table first
• Bars are always touching!
y-axis Females vs. Males in Miss Smith’s Math Classes
16
14
Number 12
of
Students 10
8
6
KEY 4
Boys 2
Girls
Period 1 Period 2 Period 3 Period 4 Period 6 Period 10
Class
X-axis
Double Bar Graph
• Two bars are touching, but there is space between categories
• Helps to compare two groups
TONIGHT’S HOMEWORK
PG. 22, #5-8
SHOW ALL GRAPHS!