Entering One-Variable Data; Entering Two-Variable Data; Correcting Errors In Data Entry - HP 33s User Manual
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- Owner's manual (386 pages) ,
- User manual (9 pages) ,
- Instruction manual (7 pages)
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Entering One–Variable Data
¹ ¡
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
Í
.
Entering Two–Variable Data
In RPN mode, when your data consist of two variables, x is the independent
variable and y is the dependent variable . Remember to enter an ( x , y ) pair in
Ï
reverse order ( y
X–register.
¹ ¡
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
¹ Í
.
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.
To correct statistical data:
11–2
Statistical Operations
{ } to clear existing statistical data.
/
.
x ) so that y ends up in the Y–register and X in the
{ } to clear existing statistical data.
Ï
.
/
.
¹
- Quick Links:
- Rpn and Alg Keys
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