Statistical Operations
35
Statistics operations require the use of two secondary function keys: :y
and :z. See Figure 3-1 for assistance with navigating through the menus.
Press :y to open the Data menu. In this menu, enter a list of x values for
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 I.
Press :z to analyze the data. If you attempt to open the Statistics (Stats)
menu before entering data, you will be redirected to the Data menu. When
opened, the menu displays
2 Vars
. Press I repeatedly to scroll through
the menu items, two-variable, (
2 Vars
)
,
one-variable,
(1 Var
), and one-variable
weighted, (
1 Weight
). Press < with an item displayed to open the first sub-
menu. To return from the sub-menu to the menu above it, press >.
To reset the Stats and Data menus, press :x. At the prompt,
Stats=
,
confirm your choice by pressing I.
The first sub-menu contains the following items:
Descriptions, Predictions
(
2 Vars
only) and
Sums
. Press > or < repeatedly to scroll through the items. With
an item displayed, press I to open its sub-menu. Press > or <
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 Next Page
Loading...
