HP 12C Platinum Financial Calculator User's Guide download pdf (Page 93)

File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 93 of 275

Printed Date: 2005/8/1 Dimension: 14.8 cm x 21 cm

Section 6

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

, through R

. (These

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

CLEAR

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:

z The number in R

is increased by 1, and the result is copied into the display.

z The x-value is added to the number in R

z The square of the x-value is added to the number in R

z The y-value is added to the number in R

z The square of the y-value is added to the number in R

z The product of the x and y-values is added to the number in R

This also clears the stack registers and the display.

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 277 278

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HP 12C Platinum Financial Calculator User's Guide Page 93