1. Data, Graphs & Probability
Bar Graphs
Data, Graphs & Probability
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Warm Up
Which fruit had the most votes?
Did more children vote for banana or orange?
Favorite fruit
Apple
Orange
Banana
Key: Each stands for 1 vote.
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Picture and Bar Graphs
You can show data with graphs
Picture Graph: a graph that shows data by using different pictures or symbols.
Bar Graph: a graph that shows data by using bars of different lengths.
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Picture and Bar Graphs
Jose and his friends voted for their favorite season. They made a picture graph and a bar graph to show their votes.
Favorite Seasons
Favorite Seasons
Spring
Summer
Fall
Winter
Spring
Summer
Seasons
Fall
Winter
Number of votes
The graphs show that summer is their favorite season.
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Try it!
Use data from the picture graph to make a bar graph about Anna and her friends.
Favorite Seasons
Spring
Summer
Fall
Winter
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Surveys
Survey: to collect data about a certain topic
How do you get to school?
Tally Mark: A line used to help count things; Each tally mark stands for one thing counted. They are written in groups of 5.
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Surveys
Which lunch choice got the most votes?
Macaroni and Cheese
Favorite Lunch
Lunch
Tally
Total
Pizza 4
Taco 3
Macaroni and Cheese 8
Sandwich 6
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Your Turn!
How do most students go home from school?
How does the smallest number of students get home from school?
Going Home
How?
Tally
Total
By Bus 5
Walking 1
By Car 3
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Make a Bar Graph
Ed’s Collections
Collections
Tally
Total
Stickers 3
Sports Cards 9
Toys 8
Shells 4
Ed’s Collections 10 9 8 7
Number of Items 6 5 4 3 2 1
Stickers
Sports
Cards
Toys
Shells
The sports card collection has the greatest number of items
Collections
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Try It!
Complete the tally chart. Make a bar graph.
Which is the favorite umbrella? How can you tell?
Favorite Umbrellas
Colors
Tally
Total
Blue
Green
Red
Purple
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Let us take a Break!
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Assessment
Hannah took a survey. She asked her friends about their favorite jungle animal. Use data from the chart to answer each question.
Which animal got 8 votes?
Which animal got the most votes?
Which animal got the fewest votes?
Five children said elephant. How many more children said lion?
Four children said zebra. How many more children said monkey?
How many children in all said zebra and lion?
How many children voted?
Animal
Votes
Elephant
Lion
Zebra
Monkey
Giraffe
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Assessment
Use data from the chart to make a bar graph.
Which bird got the most votes?
How many more children said parrot than said swan?
How many votes for blue joys does the graph show?
How many children voted in all?
Favorite Bird
Bird
Tally
Total
Robin
Blue Jay
Swan
Parrot
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Review
Picture Graph: A graph that shows data by using different pictures or symbols
Tally Mark: A mark used to record data
Bar Graph: A graph that shows data by using bars of different lengths.
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Thank You!
Remember to do the practice worksheets!!!
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