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Statistical Operations
73
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
Opens Stats menu.
<I
Opens Descriptive sub-menu.
<<
Displays average y.
:z<<
I
Opens Predictions sub-menu.
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).
81


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