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Example: finding a linear equation to fit data, Example: finding a linear equation to fit data -2 – HP 38g Graphing Calculator User Manual

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In Home:

You can also compute statistics values in Home

and recall the values of specific statistics variables.

The values computed in the Statistics aplet are saved in

variables, and many of these variables are listed by the

{{STATS}} function in Numeric view.

Example: Finding a Linear Equation to Fit Data

Enter and analyze the advertising and sales data below.

Compute statistics, fit a curve to the data, and predict the

effect of more advertising on sales.

Advertisine

("minutes')

Resultine

Sales r$')

2

1400

1

920

3

1100

5

2265

5

2890

4

2200

5-2 Statistics