Texas Instruments TI-89 사용자 설명서

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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

Display

1. Display the

MODE

dialog box. For

Graph

mode, select

FUNCTION

Press

3 B 1 ¸

2. Use

•O to display the

Data/Matrix

Editor

. Create a new data variable named

BUILD

Press 3

D D BUILD ¸ ¸