The position of the graphically represented keys can be found by moving your mouse on top of the graphic.
The functions keys on the top are not considered as a row.

Turn your calculator on
Press Row 5, Column 5.
Clearing the memory
Press Row 1, Column 1 It's Yellow Row 7, Column 3 (You should see CLR in yellow above the key) Second key in the top row of keys. (You should see Scl on the screen. Scl = Statistical Clear.)

 

Entering data
one variable
To get into the one variable mode, first press Row 2 Column 3 I think.. Then use the arrow keys to get to the SD frame - it's the third one in the top row (SD = standard deviation). Press Row 8, Column 5 Bottom Right. If you see rows of words, press Row 5, Column 5. To enter the data: enter the first value and press First key in the top row of keys (you should see DT as the first menu item on the screen). Then enter the other values, pressing First key in the top row of keys after each one. If you need to enter a value more than once, enter the value, press (you should see a semi-colon in the third slot of the menu bar), then the number of times you want to enter it. Now press First key in the top row of keys.
two variables
To get into the linear regression mode, first press Row 2 Column 3 I think.. Then use the arrow keys to get to the LR frame - it's the fourth one in the top row (LR = linear regression). Press Row 8, Column 5 Bottom Right. If you see rows of words, press Row 5, Column 5. To enter the data: enter the first x-value, (you should see a comma in the third slot in the menu bar. Actually, you can also press the comma key at row 4, column 5, either one will work) Now enter the y-value and press First key in the top row of keys (you should see DT as the first menu item on the screen).  Enter the other ordered pairs in the same way: x-value, comma, y-value, First key in the top row of keys.

 

Calculating one-variable statistics
mean (x)
Press Fourth key in the top row of keys (DEV) First key in the top row of keys (x) Row 8, Column 5 Bottom Right.  F4 gets you into the DEViation calculations.
standard deviation for populations (s or sn)
Press Fourth key in the top row of keys (DEV) Second key in the top row of keys. (xsn) Row 8, Column 5 Bottom Right.
standard deviation for samples (s or sn-1)
Press Fourth key in the top row of keys (DEV) (xsn-1) Row 8, Column 5 Bottom Right. 

Calculating two-variable statistics
r (correlation)
Press The last key in the top row of keys. (REG) (r) Row 8, Column 5 Bottom Right. 
regression coefficients
slope
Press The last key in the top row of keys. (REG) Second key in the top row of keys. (B) Row 8, Column 5 Bottom Right. 
y-intercept
Press The last key in the top row of keys. (REG) First key in the top row of keys (A) Row 8, Column 5 Bottom Right. 


Calculating combinations and permutations

To do these calculations, you need to be in the computation mode. Press Row 2 Column 3 I think.. Then use the arrow keys to get to the COMP frame - it's the first one in the top row. Press Row 8, Column 5 Bottom Right. Press Row 1, Column 1 It's Yellow The Five Key: Row 6, Column 2 to get the math commands. (You'll see the word MATH written in yellow above the 5 key.
combinations (nCr)
Press Second key in the top row of keys. (PRB). Enter the n value, press (nCr), then the r-value. Press Row 8, Column 5 Bottom Right.
permutations (nPr)
Press Second key in the top row of keys. (PRB). Enter the n value, press Second key in the top row of keys. (nPr), then the r-value. Press Row 8, Column 5 Bottom Right.

 

Turning the calculator off
Press Row 1, Column 1 It's Yellow Row 5, Column 5. You should see the word off above the key.

 

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 Row 1, Column 1 It's Yellow Row 7, Column 3 Second key in the top row of keys.  
2: Enter the data Row 2 Column 3 I think. The Right Arrow Key The Right Arrow Key ( SD) Row 8, Column 5 Bottom Right (Row 5, Column 5)  The One Key: Row 7, Column 1 The Five Key: Row 6, Column 2 First key in the top row of keys The One Key: Row 7, Column 1 The Six Key: Row 6, Column 3 First key in the top row of keys The Two Key: Row 7, Column 2 The Zero Key: Row 8, Column 1 First key in the top row of keys The Two Key: Row 7, Column 2 The One Key: Row 7, Column 1 First key in the top row of keys
3: Compute the mean Fourth key in the top row of keys (DEV) First key in the top row of keys (x) Row 8, Column 5 Bottom Right
4: Compute the population standard deviation. Fourth key in the top row of keys (DEV) Second key in the top row of keys. (xsn) Row 8, Column 5 Bottom Right
5: Compute the sample standard deviation: Fourth key in the top row of keys (DEV) (xsn-1) Row 8, Column 5 Bottom Right


    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   Row 1, Column 1 It's Yellow Row 7, Column 3 Second key in the top row of keys.  
2: Enter Data  Row 2 Column 3 I think. The Right Arrow Key The Right Arrow Key The Right Arrow Key (LR) Row 8, Column 5 Bottom Right (Row 5, Column 5) The One Key: Row 7, Column 1 The Comma Key: Row 4, Column 5 The Two Key: Row 7, Column 2 First key in the top row of keys ( DT) The Two Key: Row 7, Column 2 The Comma Key: Row 4, Column 5 The Four Key: Row 6, Column 1 First key in the top row of keys The Three Key: Row 7, Column 3 The Comma Key: Row 4, Column 5 The Five Key: Row 6, Column 2 First key in the top row of keys The Four Key: Row 6, Column 1 The Comma Key: Row 4, Column 5 The Seven Key: Row 5, Column 1 First key in the top row of keys  
3: Compute the slope of the regression line  The last key in the top row of keys. (REG) Second key in the top row of keys. (B) Row 8, Column 5 Bottom Right
4: Compute the y-intercept of the regression line.  The last key in the top row of keys. (REG) First key in the top row of keys (A) Row 8, Column 5 Bottom Right
5: Compute the correlation.  The last key in the top row of keys. (REG) (r) Row 8, Column 5 Bottom Right


    You should get a slope of 0.5, a y-intercept of 1.6, and a correlation of 0.992277876.
    The regression line would be: y = 1.6x+0.5.

C: Find 10C6 and 9P5.
1: Compute 10C6   Row 1, Column 1 It's Yellow The Five Key: Row 6, Column 2 (MATH) Second key in the top row of keys. (PRB) The One Key: Row 7, Column 1 The Zero Key: Row 8, Column 1 (nCr) The Six Key: Row 6, Column 3 Row 8, Column 5 Bottom Right
2: Compute 9P5   Row 1, Column 1 It's Yellow The Five Key: Row 6, Column 2 (MATH) Second key in the top row of keys. (PRB) The Nine Key: Row 5, Column 3 Second key in the top row of keys. (nPr) The Five Key: Row 6, Column 2 Row 8, Column 5 Bottom Right


You should get 10C6 = 210 and 9P5= 15120.

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