The position of the graphically represented keys can be found by moving your mouse on top of the graphic. 
The row of function keys: f1, f2, etc. do not count as a row. Row 1 starts with the blue 2nd key.

Turn your calculator on
Press The On Key: Row 9, Column 1.
Clearing the memory
In the Stats/List area, arrow to the top of the list and press the as many times as needed.

 

Entering data
one variable
Press The Apps Key: Row 2, Column 3, then arrow over to the Stats/List Editor. (Which arrows you press depends on which APP you used last.) Press The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5. Enter the first number in your list and press The Enter Key: Row 9, Column 5. Enter the remaining numbers in your list, pressing The Enter Key: Row 9, Column 5 after each one.
two variables
Press The Apps Key: Row 2, Column 3, then arrow over to the Stats/List Editor. Press The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5. Enter the first x-value in your list and press The Enter Key: Row 9, Column 5. Enter the remaining x-values, pressing The Enter Key: Row 9, Column 5 after each one. Press to get to the next column. Type in each corresponding y-value, pressing The Enter Key: Row 9, Column 5 after each number. 

 

Calculating one-variable statistics
mean (x)
Press The f4 Key: Top Row, fourth from the left (CALC). Now press for 1-Var Stats. Enter list1 in the List: area. You only have to do this once. The calculator will remember it for future calculations. Press The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5. A list in a new window will appear. The first entry in the list is x.
standard deviation for populations (s or sn)
As above. sx is the fifth entry in the list.
standard deviation for samples (s or sn-1)
As above. sx is the fourth entry in the list.

Calculating two-variable statistics
r (correlation)
Press The f4 Key: Top Row, fourth from the left (CALC). Now press The Three Key: Row 8, Column 4 for Regression, then The Two Key: Row 8, Column 3 for LinReg(ax+b). Enter list1,list2 in the List: area. You only have to do this once. The calculator will remember it for future calculations. Press The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5. A list in a new window will appear. The fourth entry in the list is r.
regression coefficients
slope
Press The f4 Key: Top Row, fourth from the left (CALC). Now press The Three Key: Row 8, Column 4 for Regression, then The Two Key: Row 8, Column 3 for LinReg(ax+b). Enter list1,list2 in the List: area. You only have to do this once. The calculator will remember it for future calculations. Press The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5. A list in a new window will appear. The first entry in the list is the slope a.
y-intercept
Press The f4 Key: Top Row, fourth from the left (CALC). Now press The Three Key: Row 8, Column 4 for Regression, then The Two Key: Row 8, Column 3 for LinReg(ax+b). Enter list1,list2 in the List: area. You only have to do this once. The calculator will remember it for future calculations. Press The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5. A list in a new window will appear. The second entry - b - is the y-intercept.
Note: Instead of  The Two Key: Row 8, Column 3 for LinReg(ax+b), you could press The One Key: Row 8, Column 2 for LinReg(a+bx). Then a would be the y-intercept and b would be the slope. Whatever you're most comfortable with.


Calculating combinations and permutations
combinations (nCr)
Press The Second Key: Row 1, Column 1 (It's blue) The Five Key: Row 7, Column 3 (says MATH over it). A menu will appear. Press The Seven Key: Row 6, Column 2 (for 7:Probability) The Three Key: Row 8, Column 4 (for 3:nCr) Enter n. Press The Comma Key: Row 5, Column 4. Enter r. Press The Right Parenthesis Key: Row 5, Column 3 The Enter Key: Row 9, Column 5.
permutations (nPr)
Press The Second Key: Row 1, Column 1 (It's blue) The Five Key: Row 7, Column 3 (says MATH over it). A menu will appear. Press The Seven Key: Row 6, Column 2 (for 7:Probability) The Two Key: Row 8, Column 3 (for 2:nPr) Enter n. Press The Comma Key: Row 5, Column 4. Enter r. Press The Right Parenthesis Key: Row 5, Column 3 The Enter Key: Row 9, Column 5.

 

Turning the calculator off
Press The Second Key: Row 1, Column 1 (It's blue) The On Key: Row 9, Column 1.

 

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: Enter Data  The Apps Key: Row 2, Column 3 The Down Arrow: Upper Right Corner and to Stats/List editor The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5 The One Key: Row 8, Column 2 The Five Key: Row 7, Column 3 The Enter Key: Row 9, Column 5 The One Key: Row 8, Column 2 The Six Key: Row 7, Column 4 The Enter Key: Row 9, Column 5 The Two Key: Row 8, Column 3 The Zero Key: Row 9, Column 2 The Enter Key: Row 9, Column 5 The Two Key: Row 8, Column 3 The One Key: Row 8, Column 2 The Enter Key: Row 9, Column 5
2: Compute the mean   The f4 Key: Top Row, fourth from the left (CALC) (1-Var Stats) list1(if necessary) The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5  x is the first entry
3: Compute the population standard deviation   The f4 Key: Top Row, fourth from the left (CALC) (1-Var Stats) list1(if necessary) The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5  sx is the fifth entry
4: Compute the sample standard deviation   The f4 Key: Top Row, fourth from the left (CALC) (1-Var Stats) list1(if necessary) The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5  sx is the fourth entry


    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: Enter Data   The Apps Key: Row 2, Column 3 The Down Arrow: Upper Right Corner and to Stats/List editor The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5 The One Key: Row 8, Column 2 The Enter Key: Row 9, Column 5 The Two Key: Row 8, Column 3 The Enter Key: Row 9, Column 5 The Two Key: Row 8, Column 3 The Enter Key: Row 9, Column 5 The Four Key: Row 7, Column 2 The Enter Key: Row 9, Column 5 The Three Key: Row 8, Column 4 The Enter Key: Row 9, Column 5 The Five Key: Row 7, Column 3 The Enter Key: Row 9, Column 5 The Four Key: Row 7, Column 2 The Enter Key: Row 9, Column 5 The Seven Key: Row 6, Column 2 The Enter Key: Row 9, Column 5
2: Compute the slope of the regression line  The f4 Key: Top Row, fourth from the left (CALC) The Three Key: Row 8, Column 4 (Regression) The Two Key: Row 8, Column 3 (LinReg(ax+b))  list1 The Down Arrow: Upper Right Corner list2 (if necessary)  The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5 a is first
3: Compute the y-intercept of the regression line   The f4 Key: Top Row, fourth from the left (CALC) The Three Key: Row 8, Column 4 (Regression) The Two Key: Row 8, Column 3 (LinReg(ax+b))  list1 The Down Arrow: Upper Right Corner list2 (if necessary)  The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5 b is second
4: Compute the correlation   The f4 Key: Top Row, fourth from the left (CALC) The Three Key: Row 8, Column 4 (Regression) The Two Key: Row 8, Column 3 (LinReg(ax+b))  list1 The Down Arrow: Upper Right Corner list2 (if necessary)  The Enter Key: Row 9, Column 5 The Enter Key: Row 9, Column 5 r is fourth


    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 Second Key: Row 1, Column 1 (It's blue) The Five Key: Row 7, Column 3 (MATH) The Seven Key: Row 6, Column 2 (Probability) The Three Key: Row 8, Column 4 (nCr) The One Key: Row 8, Column 2 The Zero Key: Row 9, Column 2 The Comma Key: Row 5, Column 4 The Six Key: Row 7, Column 4 The Right Parenthesis Key: Row 5, Column 3 The Enter Key: Row 9, Column 5
2: Compute 9P5   The Second Key: Row 1, Column 1 (It's blue) The Five Key: Row 7, Column 3 ( MATH) The Seven Key: Row 6, Column 2 (Probability) The Two Key: Row 8, Column 3 (nPr) The Nine Key: Row 6, Column 4 The Comma Key: Row 5, Column 4 The Five Key: Row 7, Column 3 The Right Parenthesis Key: Row 5, Column 3 The Enter Key: Row 9, Column 5


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

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