HP 30b HP 20b Business Consultant and HP 30b Business Professional User's Guid - Page 82
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Table 12-3 Statistics Example Keys < Display < < Description Displays value for a: the slope of the regression line. Displays current value for b: the y-intercept of the regression line. Displays value for Correlation. :z
Statistical Operations
74
To reset the menu items to their default values, with any item of the Data or Statistics menus
displayed press
:x
. At the prompt,
Stats
, press
I
. Confirm your choice by
pressing
I
.
<
Displays value for
a:
the slope of the
regression line.
<
Displays current value for
b:
the
y
-intercept
of the regression line.
<
Displays value for
Correlation
.
:z
<<
<I<
Opens
Sums
sub-menu. Displays the sum of
all
y
values (Sigma
y
).
Table 12-3
Statistics Example
Keys
Display
Description