The position of the graphically represented keys can be found by moving your mouse on top of the graphic.
| Turn your calculator on | |||||||||
Press  . |
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| Clearing the memory | |||||||||
Press
 . You
should see STAT on the bottom of the screen. |
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| Entering data | |||
| one variable | |||
Enter the first number, and press  .
The screen will say 1 because, so far, you have entered one data point. Enter the second
number, and press
.
The screen will say 2 because you have entered two data points. Continue
until all the data has been entered.
|
|||
| two variables | |||
Enter the first x-value. Press the 
key. Enter the corresponding y-value. Press .
The screen will say 1 because, so far, you have entered one data point.
Enter the second x-value. Press the
key. Enter the corresponding y-value. Press .
The screen will say 2 because now you have entered two data points.
Continue until all the data has been entered. |
|||
| Calculating one-variable statistics | ||||
| mean (x) | ||||
Press 
 .
You should see Mean above the
key.
|
||||
| standard deviation for populations (s or sn) | ||||
Press
 .
You should see sn
above the key. |
||||
| standard deviation for samples (s or sn-1) | ||||
Press
 .
You should see sn-1
above the key. |
||||
|
Calculating two-variable statistics |
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| r (correlation) | |||||
Press
 .
(You should see Corr written above
the key.)
|
|||||
| regression coefficients | |||||
| slope | |||||
Press
 .
(You should see the fraction b/a written above
the key. a refers to the slope.) Press the
key. The slope will be the number on the screen. |
|||||
| y-intercept | |||||
| Press
.
(You should see the fraction b/a written above
the key. b refers to the y-intercept.) The y-intercept will be the number
on the screen. |
|||||
| Calculating combinations and permutations | ||||
| combinations (nCr) | ||||
| The TI-BA 35 Solar does not do combinatorics. | ||||
| permutations (nPr) | ||||
| The TI-BA 35 Solar does not do combinatorics. | ||||
| Turning the calculator off | ||
| This is a solar calculator. It does not turn off. (If you cover it, it will turn off by itself in about two minutes.) | ||
Worked Out Examples
In the following examples, we list the exact
key sequence used to find the answer. We will list the keys by the main symbol
on the key. In parentheses, we will list a helpful mnemonic, e.g. we will list
ex as 
(ex).
A: What is the mean and standard deviation of the following list of numbers?
15 16 20 21
| 1: Clear Memory |
|
| 2: Enter Data | 
 
|
| 3: Compute the mean |
(x) |
| 4: Compute the standard deviation (population) |
(sn) |
| 5: Compute the standard deviation (sample) |
(sn-1) |
You should get a mean of 18, population standard deviation of
2.549509757 and a sample standard deviation
of 2.943920289.
B: Find the linear regression line for the following table of numbers. Also find the correlation.
| x | 1 | 2 | 3 | 4 |
| y | 2 | 4 | 5 | 7 |
| 1: Clear Memory |
|
| 2: Enter Data |
 |
| 3: Compute the slope of the regression line |
(b/a) |
| 4: Compute the y-intercept of the regression line |
(b/a) |
| 5: Compute the correlation |
(Corr) |
You should get a slope of 1.6, a y-intercept of 0.5, and a
correlation of 0.992277876.
The regression line would be: y = 1.6x+0.5.
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