Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey...
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![Page 1: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/1.jpg)
Dealing with Data
Understanding Graphs
![Page 2: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/2.jpg)
Food Votes
Pizza 972
Hot Dogs 987
Hambur-gers 955
1. A survey was taken to show people’s favorite foods. Which graph is a fairer representation of the data? Why?
Eric Curts, North Cantonwww.northcanton.sparcc.org/~technology/excel/index.html
![Page 3: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/3.jpg)
2. The graphs show the growth in the use of cell phones. They used the same data. Why do the graphs look different? Which better explains the data.
http://www.glencoe.com/sec/math/prealg/prealg03/extra_examples/chapter12/lesson12_5.pdf
![Page 4: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/4.jpg)
3. This appeared in the Winnipeg Free Press.
Is the headline correct or is the graph correct?
http://www.math.sfu.ca/~cschwarz/Stat-301/Handouts/node14.html
![Page 5: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/5.jpg)
4. How could this graph be better?
Favorite Color
Blue
Green
Red
Orange
Purple
Favorite Color
Blue 10
Green 5
Red 2
Orange 4
Purple 4
![Page 6: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/6.jpg)
Plans for Vacation
0
2
4
6
8
10
12
Visit family No plans Travel
Type of Plans
Nu
mb
er o
f 7t
h G
rad
ers
Plans for Vacation
Visit family 10
No plans 6
Travel 8
5. The graph shows the 7th graders’ vacation plans. It is representative of the entire school. If there are 300 kids in the school, how many have no vacation plans?
A. 50 students B. 75 studentsC. 100 students D.125 students
![Page 7: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/7.jpg)
Times in 50 Meter Dash
012345678
5.0-5.4 5.5-6.0 6.1-6.4 6.5-7.4 7.5-7.6 7.7-8.5
Times
Nu
mb
er
50 Meter Dash
5.0-5.4 2
5.5-6.0 1
6.1-6.4 3
6.5-7.4 7
7.5-7.6 3
7.7-8.5 4
6. What is the error in this histogram?
![Page 8: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/8.jpg)
7. Is one of these graphs better than the other? Why?
Computers in Stock
05
101520253035
Brand
Num
ber
Computers in Stock
Dell
Compac
MacIntosh
Hewlett Packard
Gateway
Computers in Stock
Dell 31
Compac 20
MacIntosh 29
Hewlett Packard 18
Gateway 12
![Page 9: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/9.jpg)
8. What is the trend of this graph? Can you predict enrollment in 2010?
Student Enrollment
0
200
400
600
800
1000
1990 1995 2000 2005 2010 2015
Year
Nu
mb
er o
f S
tud
ents
Student Enrollment
1995 380
1996 400
1997 400
1998 450
1999 480
2000 540
2001 610
2002 700
2003 720
2004 800
2005 815
2006 830
2007 850
2008 860
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9. These box and whisker plots show the death rate and compares years a person has smoked. What does it show you? Could there be any problems with the data?
![Page 11: Dealing with Data Understanding Graphs. FoodVotes Pizza972 Hot Dogs987 Hambur -gers955 1. A survey was taken to show people’s favorite foods. Which graph.](https://reader035.fdocuments.us/reader035/viewer/2022072011/56649e165503460f94b00a19/html5/thumbnails/11.jpg)
Test Scores Out Of 100
Stem Leaf
9 2 2 6 8
7 2 4 6 6 8 8 9
6 1 4 4 7 8
5 0 0 2 8 8
Test Scores Out Of 100
Stem Leaf
9 2 2 6 8
7 2 4 6 6 8 8 9
6 1 4 4 7 8
5 0 0 2 8 8
10. This stem and leaf plot has an error. What is it and why is it an error?
9|2 means 92