Texas Instruments TI-80 User Manual - Page 128
Statistics, Population in Thousands, Buildings 12 Stories, list editor. Enter - 800
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Getting Started: Building Height and City Size Getting Started is a fast-paced introduction. Read the chapter for details. Determine a linear equation to fit the data below. Enter the data, and perform a linear regression. Then plot the data. Predict how many buildings of more than 12 stories you would expect to find in a city of 300 thousand people. Population in Thousands 150 500 800 250 550 750 Buildings > 12 Stories 4 31 42 9 20 55 1. To clear any existing lists, press A 4 to copy CLRLIST to the Home screen. 2. Press 2 ¢ b 2 £ b 2 ¤ b 2 t ¸. The message DONE is displayed. 3. Press A 1 to display the STAT list editor. Enter 150 to represent 150,000 for the population of the first city. As you type, the value is displayed on the bottom line. 4. Press ¸. The value is shown in the first element of L1, and the cursor moves to the second element in the same list. 9-2 Statistics