Transcript Bar Graphs - Moore Middle School

6-4
6-4 Bar
BarGraphs
Graphs
Warm Up
Problem of the Day
Lesson Presentation
Course
Course
11
6-4 Bar Graphs
Warm Up
Use the following data set.
45 55 58 63 63 37 76 46 34
1. What is the mean of the data?
Add up all the
numbers then divide
by how many numbers
you have
2. What is the median of the data?
3. What is the mode of the data?
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Put the numbers in
order from least to
greatest then find the
number in the middle
Add up all the
numbers then divide
by how many numbers
you have
6-4 Bar Graphs
Warm Up
Use the following data set.
45 55 58 63 63 37 76 46 34
1. What is the mean of the data? 53
2. What is the median of the data? 55
3. What is the mode of the data? 63
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6-4 Bar Graphs
Vocabulary
bar graph
double-bar graph
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6-4 Bar Graphs
A bar graph can be used to display and
compare data. A bar graph displays
data with vertical or horizontal bars.
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6-4 Bar Graphs
Additional Example 1A: Reading a Bar Graph
Use the bar graph to answer each question.
Which biome in the
graph has the least
average summer
temperature?
The coniferous forest has
the least average summer
temperature.
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6-4 Bar Graphs
Additional Example 1B: Reading a Bar Graph
Use the bar graph to answer each question.
Which biomes in the
graph have an average
summer temperature of
30C or greater?
The grassland and the
rain forest have average
summer temperatures of
30C or greater.
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6-4 Bar Graphs
Check It Out: Example 1A
Use the bar graph to answer each question.
Which biome in the
graph has the highest
average summer
temperature?
The rain forest has the
highest average summer
temperature.
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6-4 Bar Graphs
Additional Example 2: Making a Bar Graph
Use the given data to make a bar graph.
Step 1:Find an appropriate scale
and interval. The scale
must include all of the
data values. The interval
separates the scale into
equal parts.
Step 2:Use the data to
determine the lengths of
the bars. Draw bars of
equal width. The bars
cannot touch.
Step 3: Title the graph and label
the axes.
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Magazine Subscriptions Sold
Grade 6
Grade 7
Grade 8
258
597
374
6-4 Bar Graphs
A double-bar graph shows two
sets of related data.
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6-4 Bar Graphs
Additional Example 3:
Problem Solving Application
Make a double-bar graph to compare the
data in the table.
Club Memberships
1
Club
Art
Music Science
Boys
12
6
16
Girls
8
14
4
Understand the Problem
You are asked to use a graph to compare the
data given in the table. You will need to use all of
the information given.
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6-4 Bar Graphs
Additional Example 3 Continued
3
Solve
Determine appropriate scales
for both sets of data.
Use the data to determine the
lengths of the bars. Draw bars
of equal width. Bars should be
in pairs. Use a different color
for boy memberships and girl
memberships. Title the graph
and label both axes.
Include a key to show what
each bar represents.
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6-4 Bar Graphs
Lesson Quiz: Part 1
Use the bar graph to answer each question.
Student Pet Survey
1. Which animal was least popular among students?
2. Which pet was more popular to twice as many
students as rabbits were?
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6-4 Bar Graphs
Lesson Quiz: Part 2
3. Make a bar graph of this data.
Number of Daily Servings
Grains = 6
Fruit = 2
Meat = 2
Milk = 3
Vegetables = 3
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6-4 Bar Graphs
Lesson Quiz: Part 1
Use the bar graph to answer each question.
Student Pet Survey
1. Which animal was least popular among students?
bird
2. Which pet was more popular to twice as many
students as rabbits were? dog
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6-4 Bar Graphs
Lesson Quiz: Part 2
3. Make a bar graph of this data.
Number of Daily Servings
Grains = 6
Number of Daily Servings
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Fruit
Meat
ab
le
s
Ve
ge
t
ilk
M
ea
t
Milk
M
Vegetables = 3
Grains
Fr
ui
t
Milk = 3
7
6
5
4
3
2
1
0
G
ra
in
s
Meat = 2
Daily Servings
Fruit = 2
Vegetables