Statistical Graphing with the TI-73

1. The following data was reported in 2002 by the US Census Bureau: (http://www.census.gov)
 
New Hampshire Population Year: 2002
Total Population 1,238,917
Male 611,105
Female 627,812
 
Lets make a bar graph of this set of data!
Turn on your TI-73 and go to LIST
In L1 enter MALE, then FEMALE: 2nd TEXT for letters (all text needs to be in-between “)
In L2 enter the corresponding numbers from the table.
 
2nd PLOT (above Y=), go to Plot 1 (hit enter), turn Plot 1 on (hit ENTER),
and move the arrow keys to highlight the bar graph (4th icon in the top row).
CategList: L1
DataList1: L2
Choose vertical or horizontal, then hit GRAPH!
 
2. The following data was also reported in 2002 by the US Census Bureau:     (http://www.census.gov)
 
Age New Hampshire Population (rounded)
< 20 250,000
20-34 225,000
35-54 400,000
55-64 125,000
65 > 140,000
 
To change the information in the lists, go to LIST, highlight L1 press CLEAR and arrow down, this should clear all entries from L1. Repeat for L2. You can always make new list (L3, L4, …)
 
Lets make a pictograph of this set of data!
In L1 enter the choices of age: 2nd TEXT for letters (all text needs to be in between ‘’)
In L2 enter the corresponding numbers from the table.
 
2nd PLOT (above Y=), go to Plot 1 (hit enter),
and move the arrow keys to highlight the pictograph (3rd icon in the top row).
CategList: L1
Data List: L2
Scale: Each icon can represent 75,000 people (scale has to be between 0 and 99,999 and no more than 7 icons can fit on the screen).
Choose an icon to represent a person, then hit GRAPH.
 
3. The following data was reported in 2002 by the Social Security Administration:    (http://www.ssa.gov)
 
Rank Baby Name Number of Births
# 1 Jacob 30122
# 1 Emily 24262
# 25 Samuel 14418
# 25 Rachel 8780
# 50 Isaac 8245
# 50 Makayla 5408
 
To change the information in the lists again, go to LIST, highlight L1 press CLEAR and arrow down, this should clear all entries from L1. Repeat for L2.  You can always make new list (L5, L6, …)
 
We are now ready to create the pie chart for the different baby names.
In L1 enter the different baby names: 2nd TEXT for letters (all text needs to be in between ‘’ and <7 letters)
In L2 enter the corresponding numbers from the table.
 
2nd PLOT (above Y=), go to Plot 1 (hit enter),
and move the arrow keys to highlight the pie chart (1st icon in the second row).
CategList: L1
Data List: L2
Choose number or percent, then hit GRAPH!
 
 
Other Activities:
Surveys can be educational and fun. Ask your students for a comparison of their favorite foods and graph the results, or ask student if they have a dog, cat, or bird and create a pictograph or bar graph. The possibilities are endless and we all like to know a little bit of trivia about the people around us!


Updated: 03/2/2004
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