Table 12-3

Statistics Example

 

 

 

 

 

Keys

Display

Description

 

 

 

:y

Opens Data menu.

 

 

 

 

 

 

 

 

 

 

 

1I1

50I

Inputs values for x(1) and y(1).

2I1

65I

Inputs values for x(2) and y(2).

3I1

60I

Inputs values for x(3) and y(3).

4I1

75I

Inputs values for x(4) and y(4).

5I1

70I

Inputs values for x(5) and y(5).

:z

<I

Opens Stats menu.

Opens Descriptive sub-menu.

<<

 

Displays average y.

 

 

 

 

 

 

 

:z<<

 

Opens Predictions sub-menu.

 

 

I

 

NOTE: this example performs calculations

 

based on a linear (a*x+b) regression line.

 

 

 

<7I

 

Inputs 7 as the Prediction x value (month 7).

 

 

 

 

 

 

 

<=

 

Calculates Prediction y value (sales at

 

 

 

month 7).

 

 

 

 

 

 

Statistical Operations 73