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Note: If you don’t need to save the current variable, use it as a
scratchpad. The next time you need a variable for temporary data, clear
the current variable and re-use it. This lets you enter temporary data
without creating a new variable each time, which uses up memory.
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.
5. Clear the contents of the variable.
Simply clearing the data does not convert
the data variable back into a list variable.
Press , 8 ¸
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 ¸ ¸
Steps and keystrokes Display
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