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 On/C L Key: Row 5, Column 5.
Clearing the memory
Press The Mode Key: Row 1, Column 2 The Seven Key: Row 5, Column 2 The Right Arrow Key: Big Silver thing in the middle top. The E X E Key: Row 8, Column 5.

 

Entering data
one variable
Press The Mode Key: Row 1, Column 2 The Two Key: Row 7, Column 2 to get into STAT mode. The screen will now show empty lists. Enter the first number in your list and press The E X E Key: Row 8, Column 5. Enter the second number and press The E X E Key: Row 8, Column 5. Do likewise for the rest of the list.
two variables
Press The Mode Key: Row 1, Column 2 The Two Key: Row 7, Column 2 to get into STAT mode. The screen will now show empty lists. Enter the first x-value in your list and press The E X E Key: Row 8, Column 5. Enter the second x-value and press The E X E Key: Row 8, Column 5. Do likewise for the rest of the x-values. Press The Right Arrow Key: Big Silver thing in the middle top. and enter the y-values in the same order, pressing The E X E Key: Row 8, Column 5 after each one.

 

Calculating one-variable statistics
mean (x)
Press The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Zero Key: Row 8, Column 1 (1-VAR). You will see three rows. The first row: n  x  xmin   xmax. Press The Right Arrow Key: Big Silver thing in the middle top. and you will see the mean (x).
standard deviation for populations (s or sn)
Press The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Zero Key: Row 8, Column 1 (1-VAR). You will see three rows. The second row: sx sx Sx Sx2. Press The Down Arrow Key: Big Silver thing in the middle top. The Right Arrow Key: Big Silver thing in the middle top. and you will see the population standard deviation (sx).
standard deviation for samples (s or sn-1)
Press The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Zero Key: Row 8, Column 1 (1-VAR). You will see three rows. The second row: sx sx Sx Sx2. Press The Down Arrow Key: Big Silver thing in the middle top. and you will see the sample standard deviation (sx).

Calculating two-variable statistics
r (correlation)
Press The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Two Key: Row 7, Column 2 (X as in linear regression). You will see a row: a  b  r. Press The Right Arrow Key: Big Silver thing in the middle top. The Right Arrow Key: Big Silver thing in the middle top. and you will see the correlation.
regression coefficients
slope
Press The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Two Key: Row 7, Column 2 (X as in linear regression). You will see a row: a  b  r. The cursor should be on a (the slope). You should see the slope on the bottom of the screen.
y-intercept
Press The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Two Key: Row 7, Column 2 (X as in linear regression). You will see a row: a  b  r. Press The Right Arrow Key: Big Silver thing in the middle top.  and you will see the y-intercept.


Calculating combinations and permutations
combinations (nCr)
Enter the n value. Press The Math Key: Row 1, Column 5 The Math Key: Row 1, Column 5 The One Key: Row 7, Column 1 (nCr). Now enter the r value and press The E X E Key: Row 8, Column 5.
permutations (nPr)
Enter the n value. Press The Math Key: Row 1, Column 5 The Math Key: Row 1, Column 5 The Zero Key: Row 8, Column 1 (nPr). Now enter the r value and press The E X E Key: Row 8, Column 5.

 

Turning the calculator off
Press The Second Key: Row 1, Column 1 The On/C L Key: Row 5, Column 5.

 

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 2 The Seven Key: Row 5, Column 2 The Right Arrow Key: Big Silver thing in the middle top. The E X E Key: Row 8, Column 5
2: Enter Data  The Mode Key: Row 1, Column 2 The Two Key: Row 7, Column 2 The One Key: Row 7, Column 1 The Five Key: Row 6, Column 2 The E X E Key: Row 8, Column 5 The One Key: Row 7, Column 1 The Six Key: Row 6, Column 3 The E X E Key: Row 8, Column 5 The Two Key: Row 7, Column 2 The Zero Key: Row 8, Column 1 The E X E Key: Row 8, Column 5 The Two Key: Row 7, Column 2 The One Key: Row 7, Column 1 The E X E Key: Row 8, Column 5 
3: Compute the mean  The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Zero Key: Row 8, Column 1 (1-VAR) The Right Arrow Key: Big Silver thing in the middle top. (x)
4: Compute the population standard deviation  The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Zero Key: Row 8, Column 1 (1-VAR) The Down Arrow Key: Big Silver thing in the middle top. The Right Arrow Key: Big Silver thing in the middle top. (sx)
5: Compute the sample standard deviation  The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Zero Key: Row 8, Column 1 (1-VAR) The Down Arrow Key: Big Silver thing in the middle top. (sx)


    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 2 The Seven Key: Row 5, Column 2 The Right Arrow Key: Big Silver thing in the middle top. The E X E Key: Row 8, Column 5
2: Enter Data   The Mode Key: Row 1, Column 2 The Two Key: Row 7, Column 2 The One Key: Row 7, Column 1 The E X E Key: Row 8, Column 5 The Two Key: Row 7, Column 2 The E X E Key: Row 8, Column 5 The Three Key: Row 7, Column 3 The E X E Key: Row 8, Column 5 The Four Key: Row 6, Column 1 The E X E Key: Row 8, Column 5 The Right Arrow Key: Big Silver thing in the middle top. The Two Key: Row 7, Column 2 The E X E Key: Row 8, Column 5 The Four Key: Row 6, Column 1 The E X E Key: Row 8, Column 5 The FIve Key: Row 6, Column 2 The E X E Key: Row 8, Column 5 The Seven Key: Row 5, Column 1 The E X E Key: Row 8, Column 5 
3: Compute the slope of the regression line  The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Two Key: Row 7, Column 2 (X) (a) 
4: Compute the y-intercept of the regression line  The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Two Key: Row 7, Column 2 (X) The Right Arrow Key: Big Silver thing in the middle top. (b) 
5: Compute the correlation  The Function Key: Big Bullet shaped key upper right The One Key: Row 7, Column 1 (CALC) The Two Key: Row 7, Column 2 (X) The Right Arrow Key: Big Silver thing in the middle top. The Right Arrow Key: Big Silver thing in the middle top. (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 Math Key: Row 1, Column 5 The Math Key: Row 1, Column 5 The One Key: Row 7, Column 1 (nCr) The Six Key: Row 6, Column 3 The E X E Key: Row 8, Column 5
2: Compute 9P5  The Nine Key: Row 5, Column 3 The Math Key: Row 1, Column 5 The Math Key: Row 1, Column 5 The Zero Key: Row 8, Column 1 (nPr) The FIve Key: Row 6, Column 2 The E X E Key: Row 8, Column 5


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

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