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 . (The CE/C key will have "CLR Work" written above it.) 
Entering data  
one variable  
Press (the 7 key should have the word DATA written above it). You should see X01= on the screen. Enter the first number, then press . You should see X02= on the screen. Enter the next number, then press . Continue until you are done with the list.  
two variables  
Press (the 7 key should have the word DATA written above it). You should see X01= on the screen. Enter the first xvalue, then press . You will see Y01= on the screen. Enter the first yvalue, then . You should see X02= on the screen. Enter the second xvalue, , the second yvalue, . Continue until you are done with the list. 
Calculating onevariable statistics  
mean (x)  
Press (You will see the word Stat above the 8 key.) You will see the word LIN on the screen. Press and you'll see the number of numbers in your list. Press again and you'll see the mean of your list.  
standard deviation for populations (s or s_{n})  
Press (You will see the word Stat above the 8 key.) You will see the word LIN on the screen. Press four times to see s_{x}. (If you have just finished computing the mean, you only need to press two more times.)  
standard deviation for samples (s or s_{n1})  
Press (You will see the word Stat above the 8 key.) You will see the word LIN on the screen. Press three times to see s_{x} 
Calculating twovariable statistics 

r (correlation)  
Press (You will see the word Stat above the 8 key.) You will see the word LIN on the screen. Press ten times to see r. Alternatively, you can also press eight times to see r.  
regression coefficients  
slope  
Press (You will see the word Stat above the 8 key.) You will see the word LIN on the screen. Press nine times to see the slope (labeled as b).  
yintercept  
Press (You will see the word Stat above the 8 key.) You will see the word LIN on the screen. Press eight times to see the yintercept (labeled as a). 
Calculating combinations and permutations  
combinations (nCr)  
Enter n, press (You should see nCr above the plus key). Enter r, then press .  
permutations (nPr)  
Enter n, press (You should see nPr above the minus key). Enter r, then press . 
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 e^{x} as (e^{x}).
A: What is the mean and standard deviation of the following list of numbers?
15 16 20 21
1: Clear Memory  
2: Enter Data 
(Data)

3: Compute the mean  (Stat) 
4: Compute the standard deviation (population)  (Stat) 
5: Compute the standard deviation (sample)  (Stat) 
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: To start  
2: Enter Data 
(Data)

3: Compute the slope of the regression line 
(Stat)

4: Compute the yintercept of the regression line 
(Stat)

5: Compute the correlation 
(Stat)

You should get a slope of 1.6, a yintercept of 0.5, and a
correlation of 0.992277876.
The regression line would be: y = 1.6x+0.5.
1: Compute _{10}C_{6}  . 
2: Compute _{9}P_{5}  . 
You should get _{10}C_{6 }= 210 and _{9}P_{5}=
15120.
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