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 | |||||||||
First get into STAT mode by pulling the
bar on the left side of the calculator up, if possible (to ensure you will get
a new screen), and then down to the bottom (there are four notches; stat mode
is the fourth). The screen will give you a choice of store-1 OR non-store-2.
Press  for non-store. Now press 
 (you should see CA, for Clear
All, above the key) to clear the memory. |
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| Entering data
Enter STAT mode, specify non-store, and clear the memory before entering new data. |
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| one variable | |||
Enter the first number, then press  .
Do not press the key
labeled DATA (row 5, column 4). (That key is used for searching an
already existing data set.) A 1 will appear on the screen because, so
far, you have entered one data point. Enter the second number, then
press .
A 2 will appear on the screen because now you have entered two data points. Continue until all the data has been entered.
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| two variables | |||
Enter the first x-value. Press 
((x,y) is above the key). A comma will appear on the screen.
Enter the corresponding y-value, then .
(There is a key labeled DATA (row 5, column 4). Do not press this
one.
See warning above.)
There will be a 1 on the screen because, so far, you have entered one data point. Enter the next
pair the same way. There will be a 2 on the screen because now you have
entered two data points. Continue until all the data has been entered. |
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| Calculating one-variable statistics | ||||
| mean (x) | ||||
Press
 (has x on top of the key).
|
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| standard deviation for populations (s or sn) | ||||
Press
 (has sx
on top of the key). |
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| standard deviation for samples (s or sn-1) | ||||
Press
 (has sx
on top of the key). |
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|
Calculating two-variable statistics |
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| r (correlation) | |||||
Press
 (has r on top of the key).
|
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| regression coefficients | |||||
| slope | |||||
Press
 (has b on top of the key). |
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| y-intercept | |||||
Press
 (has a on top of the key). |
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| Calculating combinations and permutations | ||||
| combinations (nCr) | ||||
Enter the n value. .Press
 (nCr). Enter the r value, then press
 . |
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| permutations (nPr) | ||||
| Enter the n value. Press
(nPr). Enter the r value, then press
. |
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| Turning the calculator off | ||
|
Press the |
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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 | Enter STAT mode and specify
(non-store)
(CA) |
| 2: Enter Data | 
Z |
| 3: Compute the mean |
(x) |
| 4: Compute the population standard deviation |
(sx
) |
| 5: Compute the sample standard deviation |
(sx ) |
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 | Enter STAT mode and specify (non-store)
(CA) |
| 2: Enter Data |
 |
| 3: Compute the slope of the regression line |
(b) |
| 4: Compute the y-intercept of the regression line |
(a) |
| 5: Compute the correlation |
(r) |
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.
| 1:Compute 10C6 |
(nCr)
|
| 2: Compute 9P5 | 
(nPr)
|
You should get 10C6 = 210 and 9P5=
15120.
For more information, consult a manual.
Go to:
button.