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 Key: Row 2, Column 6.
Clearing the memory
Press The ON C Key: Row 2, Column 6 The X arrow M Key: Row 5, Column 5.

 

Entering data
one variable
Press The Inverse Key: Row 1, Column 1 The ON C Key: Row 2, Column 6 (You should see the word STAT above the key. Once pressed, you will see the word STAT in the upper right hand corner of the screen) to enter STAT mode. Enter the first number in your list and press The M Plus Key: Row 7, Column 5. Enter the second number and press The M Plus Key: Row 7, Column 5. Continue likewise until the end of the list.
two variables
This calculator does not do two variable statistics.

 

Calculating one-variable statistics
mean (x)
While still in STAT mode, press The X arrow M Key: Row 5, Column 5 (you should see x in white above the key - on the left).
standard deviation for populations (s or sn)
While still in STAT mode, press The Inverse Key: Row 1, Column 1 The R M Key: Row 6, Column 5 (you should see d in yellow above the key - on the right).
standard deviation for samples (s or sn-1)
While still in STAT mode, press The R M Key: Row 6, Column 5 (you should see s in white above the key - on the left).

Calculating two-variable statistics
r (correlation)
This calculator does not do correlation.
regression coefficients
slope
This calculator does not do regression.
y-intercept
This calculator does not do regression.


Calculating combinations and permutations
combinations (nCr)
There is no direct command, but you can work it out using the factorial key. Enter n. Press The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 (you should see n! above the key in yellow) The Divided by Key: Row 5, Column 4. Enter r. Press The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 The Divided by Key: Row 5, Column 4. Enter the difference between n and r. Press The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 The Equals Key: Row 8, Column 5.
permutations (nPr)
There is no direct command, but you can work it out using the factorial key. Enter n. Press The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 (you should see n! above the key in yellow) The Divided by Key: Row 5, Column 4. Enter r. Press The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 The Equals Key: Row 8, Column 5.

 

Turning the calculator off
Press The OFF Key: Row 2, 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 ON C Key: Row 2, Column 6 The X arrow M Key: Row 5, Column 5
2: Enter Data   The Inverse Key: Row 1, Column 1 The ON C Key: Row 2, Column 6 The One Key: Row 7, Column 1 The Five Key: Row 6, Column 2 The M Plus Key: Row 7, Column 5 The One Key: Row 7, Column 1 The Six Key: Row 6, Column 3 The M Plus Key: Row 7, Column 5 The Two Key: Row 7, Column 2 The Zero Key: Row 8, Column 1 The M Plus Key: Row 7, Column 5 The Two Key: Row 7, Column 2 The One Key: Row 7, Column 1 The M Plus Key: Row 7, Column 5
3: Compute the mean   The X arrow M Key: Row 5, Column 5 (x)
4: Compute the population standard deviation  The Inverse Key: Row 1, Column 1 The R M Key: Row 6, Column 5 (d)
5: Compute the sample standard deviation  The R M Key: Row 6, Column 5 (s)


    You should get a mean of 18, population standard deviation of 2.549509757 and a sample standard deviation of 2.943920289.

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

 The One Key: Row 7, Column 1 The Zero Key: Row 8, Column 1 The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 (n!) The Divided by Key: Row 5, Column 4 The Six Key: Row 6, Column 3 The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 The Divided by Key: Row 5, Column 4 The Four Key: Row 6, Column 1 (4 = 10 - 6) The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 The Equals Key: Row 8, Column 5
2: Compute 9P5   The Nine Key: Row 5, Column 3 The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 ( n!) The Divided by Key: Row 5, Column 4 The Five Key: Row 6, Column 2 The Inverse Key: Row 1, Column 1 The C E Key: Row 3, Column 6 The Equals Key: Row 8, Column 5


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

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