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Statistics Functions; Accumulating Statistics; Section 6: Statistics Functions - HP 12C Platinum User Manual

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Statistics Functions

Accumulating Statistics

The hp 12c platinum 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
registers are 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-value" — key the x-value into the display, then press _.
In two-variable statistical calculations, to enter each data pair — referred to as the
"x and y-values":
1. Key the y-value into the display.
2. Press \.
3. Key the x-value into the display.
4. Press _.
Each time you press _, the calculator does the following:
The number in R
The x-value is added to the number in R
The square of the x-value is added to the number in R
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 x and y-values is added to the number in R
*
This also clears the stack registers and the display.
Section 6
is increased by 1, and the result is copied into the display.
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93
, through R
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