Statistics And Data Plots - Texas Instruments TITANIUM TI-89 User Manual

Statistics and Data Plots

Statistics and Data Plots Statistics and Data Plots Statistics and Data Plots
Based on a sample of seven cities, enter data that relates population to the number of
buildings with more than 12 stories. Using Median-Median and linear regression
calculations, find and plot equations to fit the data. For each regression equation, predict
how many buildings of more than 12 stories you would expect in a city of 300,000
people.
Steps and keystrokes
1. Display the
MODE
mode, select
FUNCTION
Press 3 B 1 ¸
2. Use•O to display the
. Create a new data variable named
Editor
.
BUILD
Press 3 D D BUILD ¸ ¸
Previews
dialog box. For
Graph
.
Data/Matrix
Display
119