The position of the graphically represented keys can be found by moving your mouse on top of the graphic. The functions keys are not considered to be a row. Row 1 starts with the yellow shift key.

Turn your calculator on
Press The A C On Key: Row 5, Column 5.
Clearing the memory
Press The Menu Key: Row 1, Column 4. Arrow to the STAT menu and press The E X E Key: Row 8, Column 5. The list screen will appear. Press The F 6 Key: Rightmost on the row of grey keys. (You should see on the screen.) The F 4 Key: Fourth on the row of grey keys. (DEL-A, for delete all). The ever cautious calculator will ask you if you really mean it. Press The F 1 Key: First on the row of grey keys. for yes.

 

Entering data
one variable
Type in the first entry in your list and press The E X E Key: Row 8, Column 5. Type in the rest of the list, pressing The E X E Key: Row 8, Column 5 after each entry.
two variables
Type in the first x-value in your list and press The E X E Key: Row 8, Column 5. Type in the rest of the x-values, pressing The E X E Key: Row 8, Column 5 after each entry. Press right arrow. Now type in all the y-values, pressing The E X E Key: Row 8, Column 5 after each entry. Make sure the y-values correspond to the x-values they sit next to.

 

Calculating one-variable statistics
mean (x)
From the data entry screen, press The F 2 Key: Second on the row of grey keys. (CALC, for calculations) The F 1 Key: First on the row of grey keys. (1-VAR, for one variable). A new window will open with the results. x is first in that list.
standard deviation for populations (sn or xsn)
From the data entry screen, press The F 2 Key: Second on the row of grey keys. (CALC, for calculations) The F 1 Key: First on the row of grey keys. (1-VAR, for one variable). A new window will open with the results. xsn is 4th in the list.
standard deviation for samples (sn-1 or xsn-1)
From the data entry screen, press The F 2 Key: Second on the row of grey keys. (CALC, for calculations) The F 1 Key: First on the row of grey keys. (1-VAR, for one variable). A new window will open with the results. xsn-1 is fifth in the list.

Calculating two-variable statistics
r (correlation)
From the data entry screen, press The F 2 Key: Second on the row of grey keys. (CALC, for calculations) The F 3 Key: Third on the row of grey keys. (REG, for regression) The F 1 Key: First on the row of grey keys. (X, for linear regression). A new window will open with the results. r, the correlation is the third entry in that list.
regression coefficients
slope
From the data entry screen, press The F 2 Key: Second on the row of grey keys. (CALC, for calculations) The F 3 Key: Third on the row of grey keys. (REG, for regression) The F 1 Key: First on the row of grey keys. (X, for linear regression). A new window will open with the results. a, the slope of the regression line is first entry in that list.
y-intercept
From the data entry screen, press The F 2 Key: Second on the row of grey keys. (CALC, for calculations) The F 3 Key: Third on the row of grey keys. (REG, for regression) The F 1 Key: First on the row of grey keys. (X, for linear regression). A new window will open with the results. b, the y-intercept of the regression line is second in that list.


Calculating combinations and permutations
combinations (nCr)
Enter n. Press The Option Key: Row 1, Column 2 The F 6 Key: Rightmost on the row of grey keys. (You should see a right arrow on the screen.) The F 3 Key: Third on the row of grey keys. (PROB should be the third choice) The F 3 Key: Third on the row of grey keys. (nCr).  Enter r and press The E X E Key: Row 8, Column 5.
permutations (nPr)
Enter n. Press The Option Key: Row 1, Column 2 The F 6 Key: Rightmost on the row of grey keys. (You should see a right arrow on the screen.) The F 3 Key: Third on the row of grey keys. (PROB should be the third choice) The F 2 Key: Second on the row of grey keys. (nPr).  Enter r and press The E X E Key: Row 8, Column 5.

 

Turning the calculator off
Press The Shift Key: Row 1, Column 1 - It's Yellow. The A C On 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 F 6 Key: The righmost key on the top row. (Right Arrow Character) The F 4 Key: Fourth key in the topmost row (DEL·A)
2: Enter the data:   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 F 2 Key: Second key in the topmost row (CALC) The F 1 Key: The leftmost key in the top row. (1VAR) 
4: Compute the standard deviation (population):  The F 2 Key: Second key in the topmost row (CALC) The F 1 Key: The leftmost key in the top row. (1VAR) 
5: Compute the standard deviation (sample):  The F 2 Key: Second key in the topmost row (CALC) The F 1 Key: The leftmost key in the top row. (1VAR)


    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 F 6 Key: The righmost key on the top row. (Right Arrow Character ) The F 4 Key: Fourth key in the topmost row (DEL·A)
2: Enter Data  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 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 Row 8, Column 5
3: Compute the slope of the regression line  The F 2 Key: Second key in the topmost row (CALC) The F 3 Key: Third key in the topmost row of keys (REG) The F 1 Key: The leftmost key in the top row. (X) 
4: Compute the y-intercept of the regression line  The F 2 Key: Second key in the topmost row (CALC) The F 3 Key: Third key in the topmost row of keys (REG) The F 1 Key: The leftmost key in the top row. (X) 
5: Compute the correlation  The F 2 Key: Second key in the topmost row (CALC) The F 3 Key: Third key in the topmost row of keys (REG) The F 1 Key: The leftmost key in the top row. (X) 


    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 Option Key: Row 1, Column 2 The F 6 Key: The righmost key on the top row. The F 3 Key: Third key in the topmost row of keys (PROB) The F 3 Key: Third key in the topmost row of keys (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 Option Key: Row 1, Column 2 The F 6 Key: The righmost key on the top row. The F 3 Key: Third key in the topmost row of keys (PROB) The F 2 Key: Second key in the topmost row (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.

Other Casio fx-9960g pages: 

Casio's online manual sample problem set home page  
Scatterplots and Histograms Normal Distribution Hypothesis Tests Confidence Intervals
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