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Entering One-variable Data; Entering Two-variable Data; Correcting Errors In Data Entry - HP 35s User Manual

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Entering One–Variable Data
1. Press
2. Key in each x–value and press
3. The display shows n, the number of statistical data values now accumulated.
Pressing
actually enters two variables into the statistics registers because the
value already in the Y–register is accumulated as the y–value. For this reason, the
calculator will perform linear regression and show you values based on y even
when you have entered only x–data — or even if you have entered an unequal
number of x–and y–values. No error occurs, but the results are obviously not
meaningful.
To recall a value to the display immediately after it has been entered, press

.
Entering Two–Variable Data
If the data is a pair of variables, enter first the dependent variable (the 2
of the pair) and press
variable of the pair) and press
1. Press
2. Key in the y–value first and press
3. Key in the corresponding x–value and press
4. The display shows n, the number of statistical data pairs you have
accumulated.
5. Continue entering x, y–pairs. n is updated with each entry.
To recall an x–value to the display immediately after it has been entered, press

.

Correcting Errors in Data Entry

If you make a mistake when entering statistical data, delete the incorrect data and
add the correct data. Even if only one value of an x, y–pair is incorrect, you must
delete and reenter both values.
12-2
Statistical Operations
()to clear existing statistical data.
, and then enter the independent variable (the first
.
() to clear existing statistical data.
.
.
.
nd
variable

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