The position of the graphically represented keys can be found by moving your mouse on top of the graphic.
| Turn your calculator on | |||||||||
Press  . |
|||||||||
| Clearing the memory | |||||||||
| Press . |
|||||||||
| Entering data | |||
| one variable | |||
Press 
(you should see STAT1 above the key) to select the one-variable
statistics mode. The word STAT should appear on the screen. Type
in the first number and press 
(if you wish to delete the element after you hit the , type it
in again and press 
(S-
). You will see a 1 on the screen because, so far, you have entered one data
point. Type in the second number and press .
Continue until all the data has been
entered.
|
|||
| two variables | |||
| Press
(you should see STAT2 above the key) to select the two-variable
statistics mode. The word STAT should appear on the screen. Type
in the first x-value, press the
key. Type in the corresponding y-value, then press .
Continue until all the data has been entered. |
|||
| Calculating one-variable statistics | ||||
| mean (x) | ||||
Press
(you should see x above the
key).
|
||||
| standard deviation for populations (s or sn) | ||||
Press
 (you
should see sxn
above the division sign). |
||||
| standard deviation for samples (s or sn-1) | ||||
Press
(you should see sxn-1above
the square root sign). |
||||
|
Calculating two-variable statistics |
|||||
| r (correlation) | |||||
Press
(you should see COR written above
the key).
|
|||||
| regression coefficients | |||||
| slope | |||||
Press
(you should see SLP written above
the 5). |
|||||
| y-intercept | |||||
| Press
(you should see ITC written above
the 4). |
|||||
| Calculating combinations and permutations | ||||
| combinations (nCr) | ||||
Enter the n value. Press .
Enter the r value. Press
(you should see nPr over the arrow and nCr above the key). |
||||
| permutations (nPr) | ||||
| Enter the n value. Press .
Enter the r value. Press
(you should see nPr over the arrow and nCr above the key). |
||||
| Turning the calculator off | ||
|
Press |
||
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) |
(sxn) |
| 5: Compute the standard deviation (sample) |
(sxn-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 |
(
STAT 2)
 |
| 3: Compute the slope of the regression line |
(SLP) |
| 4: Compute the y-intercept of the regression line |
(ITC) |
| 5: Compute the correlation |
(COR) |
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.
Go to: