Statistics Functions; Accumulating Statistics - HP 0012C-90001 User Manual

Statistics Functions

Statistics Functions
Statistics Functions Statistics Functions

Accumulating Statistics

Accumulating Statistics Accumulating Statistics Accumulating Statistics
The hp 12c can perform one- or two-variable statistical calculations. The data is
entered into the calculator using the _ key, which automatically calculates and
stores statistics of the data into storage registers R
therefore referred to as the "statistics registers.")
Before beginning to accumulate statistics for a new set of data, you should clear
the statistics registers by pressing fclear².
In one-variable statistical calculations, to enter each data point — referred to as an
x- x-
" value" — key the
In two-variable statistical calculations, to enter each data pair — referred to as the
x y-
" and values":
y-
1. Key the value into the display.
2. Press \.
x-
3. Key the value into the display.
4. Press _.
Each time you press _, the calculator does the following:
The number in R

x-
The value is added to the number in R

The square of the

The y-value is added to the number in R

The square of the y-value is added to the number in R

The product of the

*
This also clears the stack registers and the display.
Section 6
value into the display, then press _.
is increased by 1, and the result is copied into the display.
1
x-
value is added to the number in R
x y-
and values is added to the number in R
76 76 76 76
, through R . (These registers are
1 6
*
.
2
.
3
.
4
.
5
.
6