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

When counting rows, I will not count the 4 bullet shaped keys on top: ON, MODE, 2ND, CONST. Row 1, therefore, starts with DATA.

To work the arrow keys, press the big black oval shaped key (between the ON and MODE keys) in the proper place. is on the left, is on top, etc.

Turn your calculator on
Press Upper Right Hand Corner It's the red bullet shaped key..
Clearing the memory
Press Upper Left Hand Corner It's light purple. Row 7, Column 2 Row 8, Column 5. You should see the word CLRDATA underlined on the screen.

 

Entering data
one variable
Press Upper Left Hand Corner It's light purple. Row 7, Column 2 to enter the statistics menu. The cursor should be on 1-VAR. If it isn't, arrow to it. Press Row 1, Column 1. Enter the first value and press . (Not sure on this point, the second number is the frequency of the data. So if the number 15 showed up twelve times in your list, you would enter 12 here. I think 1 is a default value, so you can just press the down arrow twice if the value only shows up once.) Enter the rest of the values, pressing after each one.
two variables
Press Upper Left Hand Corner It's light purple. Row 7, Column 2 to enter the statistics menu. The cursor should be on 1-VAR. Press to move the cursor to 2-VAR. Press Row 1, Column 1. Enter the first x-value and press . Enter the corresponding y-value and press .  Enter the rest of the ordered pairs in the same way.

 

Calculating one-variable statistics
mean (x)
Press Row 1, Column 2. The letter n should be underlined. Press The Right Arrow Key to move the cursor (the underline) to the mean (designated x). It's value will now be on the screen.
standard deviation for populations (s or sn)
Press Row 1, Column 2. The letter n should be underlined. Press The Right Arrow Key The Right Arrow Key The Right Arrow Key to move the cursor (the underline) to the population standard deviation (designated sx). It's value will now be on the screen.
standard deviation for samples (s or sn-1)
Press Row 1, Column 2. The letter n should be underlined. Press The Right Arrow Key The Right Arrow Key to move the cursor (the underline) to the sample standard deviation (designated sx). It's value will now be on the screen.

Calculating two-variable statistics
r (correlation)
Press Row 1, Column 2. The letter n should be underlined. Press The Right Arrow Key nine times to move the cursor (the underline) to the correlation (designated r). It's value will now be on the screen.
regression coefficients
slope
Press Row 1, Column 2. The letter n should be underlined. Press The Right Arrow Key eight times to move the cursor (the underline) to the slope (designated b). It's value will now be on the screen. (Alternatively, you can press four times.)
y-intercept
Press Row 1, Column 2. The letter n should be underlined. Press The Right Arrow Key seven times to move the cursor (the underline) to the y-intercept (designated a). It's value will now be on the screen. (Alternatively, you can press five times.)


Calculating combinations and permutations
combinations (nCr)
Enter the n value. Press Row 2, Column 4 The Right Arrow Key (the word nCr should be underlined). Press Row 8, Column 5. Enter the r value and press Row 8, Column 5. 
permutations (nPr)
Enter the n value. Press Row 2, Column 4 (the word nPr should be underlined). Press Row 8, Column 5. Enter the r value and press Row 8, Column 5.

 

Turning the calculator off
Press The light orange bullet shaped key on the left. Upper Right Hand Corner It's the red bullet shaped key..

 

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  Upper Left Hand Corner It's light purple. Row 7, Column 2 Row 8, Column 5
2: Enter Data  Upper Left Hand Corner It's light purple. The One Key: Row 7, Column 2 (1-VAR) Row 1, Column 1 The One Key: Row 7, Column 2 The Five Key: Row 6, Column 3 The One Key: Row 7, Column 2 The Six Key: Row 6, Column 4 The Two Key: Row 7, Column 3 The Zero Key: Row 8, Column 2 The Two Key: Row 7, Column 3 The One Key: Row 7, Column 2  
3: Compute the mean   Row 1, Column 2 The Right Arrow Key (x)
4: Compute the population standard deviation  Row 1, Column 2 The Right Arrow Key The Right Arrow Key The Right Arrow Key (sx)
5: Compute the sample standard deviation  Row 1, Column 2 The Right Arrow Key The Right Arrow Key (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  Upper Left Hand Corner It's light purple. Row 7, Column 2 Row 8, Column 5
2: Enter Data   Upper Left Hand Corner It's light purple. Row 7, Column 2 The Right Arrow Key (2-VAR) Row 1, Column 1  Row 7, Column 2 The Two Key: Row 7, Column 3    The Two Key: Row 7, Column 3 The Four Key: Row 6, Column 2    The Three Key: Row 7, Column 4 The Five Key: Row 6, Column 3    The Four Key: Row 6, Column 2 The Seven Key: Row 5, Column 2  
3: Compute the slope of the regression line  Row 1, Column 2 The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow KeyThe Right Arrow Key The Right Arrow Key (b)
4: Compute the y-intercept of the regression line  Row 1, Column 2 The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key (a)
5: Compute the correlation  Row 1, Column 2 The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key The Right Arrow Key (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 2 The Zero Key: Row 8, Column 2 Row 2, Column 4 (nCr) Row 8, Column 5 The Six Key: Row 6, Column 4 Row 8, Column 5 
2: Compute 9P5  The Nine Key: Row 5, Column 4 Row 2, Column 4 (nPr) Row 8, Column 5 The Five Key: Row 6, Column 3 Row 8, Column 5 


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

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