HP 20b Business Consultant Quick Start Manual page 35

Statistics operations require the use of two secondary function keys:
:z
and . See Figure 3-1 for assistance with navigating through the menus.
:y
Press
one-variable statistics, a list of pairs, (x, w) for weighted, one-variable statistics, or
a list of paired values (x, y) for two-variable statistics. To enter data, key in a
number and press
:z
Press
menu before entering data, you will be redirected to the Data menu. When
opened, the menu displays 2 Vars . Press
the menu items, two-variable, ( 2 Vars ) , one-variable, (1 Var ), and one-variable
weighted, ( 1 Weight ). Press
menu. To return from the sub-menu to the menu above it, press
To reset the Stats and Data menus, press
confirm your choice by pressing
The first sub-menu contains the following items: Descriptions, Predictions ( 2 Vars
only) and Sums . Press
an item displayed, press
repeatedly to view the results.
Note: in one-variable and one-weight items, there are no items for y . For an
example using the Stats menu, see Tables 3-1 and 3-2. The example is shown
with RPN as the active operating mode.
to open the Data menu. In this menu, enter a list of x values for
I
.
to analyze the data. If you attempt to open the Statistics (Stats)
<
I
> <
or
I
I
with an item displayed to open the first sub-
:x
.
repeatedly to scroll through the items. With
to open its sub-menu. Press
35
Statistical Operations
repeatedly to scroll through
>
. At the prompt, Stats= ,
>
:y
.
<
or