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

Turn your calculator on
Press The ON Key: Round Key on the top row, far right.
Clearing the memory
Press The Shift Key: Round key on the top row, far left. The Clear Key: Round button just to the right of the big black button. You will be given three choices. Press The One Key: Row 7, Column 1 (Scl=Stat Clear). 

 

Entering data
one variable
First, press The Mode Key: Round button just to the right of the big black button. The Mode Key: Round button just to the right of the big black button. The One Key: Row 7, Column 1 (SD). Yes, the mode key is pressed twice. Now enter the first number in your list and press The M + Key: Row 4, Column 6. Enter the other numbers, pressing The M + Key: Row 4, Column 6 after each. 
two variables
First, press The Mode Key: Round button just to the right of the big black button. The Mode Key: Round button just to the right of the big black button. The Two Key: Row 7, Column 2 (REG) The One Key: Row 7, Column 1 (Lin). Yes, the mode key is pressed twice. To enter the first ordered pair, enter the first x-value, press The Comma Key: Row 4, Column 5, enter the first y-value and press The M + Key: Row 4, Column 6. Enter the other ordered pairs in the same fashion, pressing The M + Key: Row 4, Column 6 after each. 

 

Calculating one-variable statistics
mean (x)
Press The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2. (You should see S-VAR in blue brackets above the key.) You'll see three choices on the screen, press The One Key: Row 7, Column 1 (x). Press The Equals Key: Row 8, Column 5 to see the answer.
standard deviation for populations (s or sn)
Press The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2. (You should see S-VAR in blue brackets above the key.) You'll see three choices on the screen, press The Two Key: Row 7, Column 2 (xsn). Press The Equals Key: Row 8, Column 5 to see the answer.
standard deviation for samples (s or sn-1)
Press The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2. (You should see S-VAR in blue brackets above the key.) You'll see three choices on the screen, press The Three Key: Row 7, Column 3 (xsn-1). Press The Equals Key: Row 8, Column 5 to see the answer.

Calculating two-variable statistics
r (correlation)
Press The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2. (You should see S-VAR in blue brackets above the key.) Press The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Right Arrow Key: push the big black button on the right side (3:00, if you will). You'll see three choices on the screen, press The Three Key: Row 7, Column 3 (r). Press The Equals Key: Row 8, Column 5 to see the answer.
regression coefficients
slope
Press The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2. (You should see S-VAR in blue brackets above the key.) Press The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Right Arrow Key: push the big black button on the right side (3:00, if you will). You'll see three choices on the screen, press The Two Key: Row 7, Column 2 (B). Press The Equals Key: Row 8, Column 5 to see the answer.
y-intercept
Press The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2. (You should see S-VAR in blue brackets above the key.) Press The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Right Arrow Key: push the big black button on the right side (3:00, if you will). You'll see three choices on the screen, press The One Key: Row 7, Column 1 (A). Press The Equals Key: Row 8, Column 5 to see the answer.


Calculating combinations and permutations
combinations (nCr)
Enter the n value. Press The Shift Key: Round key on the top row, far left. The Times Key: Row 6, Column 4 (nCr is above the key). Enter the r value and press The Equals Key: Row 8, Column 5.
permutations (nPr)
Enter the n value. Press The Shift Key: Round key on the top row, far left. The Divided By Key: Row 6, Column 5 (nPr is above the key). Enter the r value and press The Equals Key: Row 8, Column 5.

 

Turning the calculator off
Press The Shift Key: Round key on the top row, far left. The AC Key: Row 5, Column 6 (Why is the OFF key no where near the ON key?) (It says OFF on top of 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  The Shift Key: Round key on the top row, far left. The Clear Key: Round button just to the right of the big black button. The One Key: Row 7, Column 1 (Scl)
2: Enter Data  The Mode Key: Round button just to the right of the big black button. The Mode Key: Round button just to the right of the big black button. The One Key: Row 7, Column 1 (SD) The One Key: Row 7, Column 1 The Five Key: Row 6, Column 2 The M + Key: Row 4, Column 6 The One Key: Row 7, Column 1 The Six Key: Row 6, Column 3 The M + Key: Row 4, Column 6 The Two Key: Row 7, Column 2 The Zero Key: Row 8, Column 1 The M + Key: Row 4, Column 6 The Two Key: Row 7, Column 2 The One Key: Row 7, Column 1 The M + Key: Row 4, Column 6
3: Compute the mean  The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2 (S-VAR) The One Key: Row 7, Column 1 (x) The Equals Key: Row 8, Column 5 
4: Compute the population standard deviation  The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2 (S-VAR) The Two Key: Row 7, Column 2 (xsn) The Equals Key: Row 8, Column 5
5: Compute the sample standard deviation  The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2 (S-VAR) The Three Key: Row 7, Column 3 (xsn-1) The Equals Key: Row 8, Column 5


    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  The Shift Key: Round key on the top row, far left. The Clear Key: Round button just to the right of the big black button. The One Key: Row 7, Column 1 (Scl)
2: Enter Data  The Mode Key: Round button just to the right of the big black button. The Mode Key: Round button just to the right of the big black button. The Two Key: Row 7, Column 2 (REG) The One Key: Row 7, Column 1 (Lin) The One Key: Row 7, Column 1 The Comma Key: Row 4, Column 5 The Two Key: Row 7, Column 2 The M + Key: Row 4, Column 6 The Two Key: Row 7, Column 2 The Comma Key: Row 4, Column 5 The Four Key: Row 6, Column 1 The M + Key: Row 4, Column 6 The Three Key: Row 7, Column 3 The Comma Key: Row 4, Column 5 The Five Key: Row 6, Column 2 The M + Key: Row 4, Column 6 The Four Key: Row 6, Column 1 The Comma Key: Row 4, Column 5 The Seven Key: Row 5, Column 1 The M + Key: Row 4, Column 6
3: Compute the slope of the regression line  The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2 (S-VAR) The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Two Key: Row 7, Column 2 (B) The Equals Key: Row 8, Column 5
4: Compute the y-intercept of the regression line  The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2 (S-VAR) The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Right Arrow Key: push the big black button on the right side (3:00, if you will) The One Key: Row 7, Column 1 (A) The Equals Key: Row 8, Column 5
5: Compute the correlation  The Shift Key: Round key on the top row, far left. The Two Key: Row 7, Column 2 (S-VAR) The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Right Arrow Key: push the big black button on the right side (3:00, if you will) The Three Key: Row 7, Column 3 (r) The Equals Key: Row 8, Column 5


    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.

C: Find 10C6 and 9P5.
1:Compute 10C6

 The One Key: Row 7, Column 1 The Zero Key: Row 8, Column 1 The Shift Key: Round key on the top row, far left. The Times Key: Row 6, Column 4 (nCr) The Six Key: Row 6, Column 3 The Equals Key: Row 8, Column 5
2: Compute 9P5  The Nine Key: Row 5, Column 3 The Shift Key: Round key on the top row, far left. The Times Key: Row 6, Column 4 (nCr) The Five Key: Row 6, Column 2 The Equals Key: Row 8, Column 5


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

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