HP (Hewlett-Packard) 35s ユーザーズマニュアル

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Entering One–Variable Data
1. Press 
 ()to clear existing statistical data.
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
nd
 variable 
of the pair) and press 
, and then enter the independent variable (the first 
variable of the pair) and press 
.
1. Press 
 
 () to clear existing statistical data. 
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 xy–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 xy–pair is incorrect, you must 
delete and reenter both values.