The position of the graphically represented keys can be found by moving your mouse on top of the graphic. 

Turn your calculator on
Press The AC Key: row 5, column 5. (You should see the word ON to the right of the key.)
Clearing the memory
Press The Shift Key: top left (black key) The C Key: Row 5, Column 4 (you should see SCL, for Stat CLear, over the key).

 

Entering data
one variable
Press  The Mode Key: Row 1, Column 5 The Two Key: Row 7 Column 2 (to get into one-variable statistics mode SD).  Enter the first number.  Press The M Plus Key: row 4, column 6.  Enter the second number.  Press The M Plus Key: row 4, column 6.  Continue until all the data has been entered.
two variables
Press  The Mode Key: Row 1 Column 5 The Three Key: Row 7 Column 3   (to get into two-variable mode LR).  Clear memory.  Type in the first x-value, then  The Left Bracket Key: Row 4, Column 3 (you should see (xD,yD) below the key), then the corresponding y-value.  Press The M Plus Key: Row 4, Column 6.  Continue in this manner until all the data has been entered.

 

Calculating one-variable statistics
mean (x)
Press The Shift Key: Row 1 Column 1 It's completely black Row 7, Column 1 (you should see x above the key).
standard deviation for populations (s or sn)
Press The Shift Key: Row 1 Column 1 It's completely black. The Two Key: Row 7, Column 2 (you should see x sn above the key).
standard deviation for samples (s or sn-1)
Press The Shift Key: Row 1 Column1 It's completely black The Three Key: Row 7, Column 3 (you should see x sn-1 above the key).

Calculating two-variable statistics
r (correlation)
Press The Shift Key: Row 1 Column1 It's completely black The Nine Key: Row 5, Column 3 (you should see r above the key).
regression coefficients
slope
Press The Shift Key: Row 1 Column 1 It's completely black The Eight Key: Row 5, Column 2 (you should see A above the key).
y-intercept
Press The Shift Key: Row 1 Column 1 It's completely black The Seven Key: Row 5, Column 1 (you should see B above the key).


Calculating combinations and permutations
combinations (nCr)
Enter the n value.  Press The Shift Key: Row 1 Column 1 It's completely black. The Divided By Key: Row 6, Column 5 (you should see nCr above the key).  Enter the r value, then The Equals Key: Row 8, Column 5 or Bottom Right.
permutations (nPr)
Enter the n value.  Press The Shift Key: Row 1 Column 1 It's completely black. The Times Key: Row 6, Column 4 (you should see nPr above the key).  Enter the r value, then The Equals Key: Bottom Right.

 

Turning the calculator off
This is a solar calculator.  You can't turn it off.  EVER!  (Okay, it shuts down after two minutes of non-use).


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 Mode Key: Row 1 Column 5 The Two Key: Row 7, Column 2 The Shift Key: Top Row leftmost key The C Key: Row 5, Column 4 (scl)
2: Enter the data:  The One Key: Row 7, Column 1 The Five Key: Row 6, Column 2 The M-Plus Key:Row 4, Column 6 The One Key: Row 7, Column 1 The Six Key: Row 6, Column 3 The M-Plus Key:Row 4, Column 6 The Two Key: Row 7, Column 2 The Zero Key: Row 8, Column 1 The M-Plus Key:Row 4, Column 6 The Two Key: Row 7, Column 2 The One Key: Row 7, Column 1 The M-Plus Key: Row 4, Column 6
3: Compute the mean  The Shift Key: top left (black key) The One Key: Row 7, Column 1 (x)  
4: Compute the standard deviation (population):  The Shift Key: top left (black key) The Two Key: Row 7, Column 2 (x sn)  
5: Compute the standard deviation (sample):  The Shift Key: top left (black key) The Three Key: Row 7, Column 3 (x sn-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  The Mode Key: Row 1 Column 5 The Three Key: Row 7, Column 3 The Shift Key: top left (black key) The C Key: Row 5, Column 4 (scl)
2: Enter Data  The One Key: Row 7, Column 1 The Left Bracket Key: Row 4, Column 3 The Two Key: Row 7, Column 2 The M-Plus Key: Row 4, Column 6 (DT) The Two Key: Row 7, Column 2 The Left Bracket Key: Row 4, Column 3 The Four Key: Row 6, Column 1 The M-Plus Key: Row 4, Column 6 The Three Key: Row 7, Column 3 The Left Bracket Key: Row 4, Column 3 The Five Key: Row 6, Column 2 The M-Plus Key: Row 4, Column 6 The Four Key: Row 6, Column 1 The Left Bracket Key: Row 4, Column 3 The Seven Key: Row 5, Column 1 The M-Plus Key: Row 4, Column 6 
3: Compute the slope of the regression line  The Shift Key: top left (black key) The Eight Key: Row 5, Column 2 (B)
4: Compute the y-intercept of the regression line  The Shift Key: top left (black key) The Seven Key: Row 5, Column 1 (A)
5: Compute the correlation  The Shift Key: top left (black key) The Nine Key: Row 5, Column 3  (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

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: top left (black key) The Divided By Key: Row 6, Column 5 (nCr ) The Six Key: Row 6, Column 3 The Equals Key: Bottom Right
2: Compute 9P5  The Nine Key: Row 5, Column 3 The Shift Key: top left (black key) The Times Key: Row 6, Column 4 (nPr ) The Five Key: Row 6, Column 2 The Equals Key: Bottom Right


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

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