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

Turn your calculator on
	Press .
Clearing the memory
	To clear data while not in stat mode: Press . To clear data while in stat mode: Press (STAT is written above the key.) Press five times. The cursor should underline CLRDATA. Press .

Entering data
	one variable
		Press . You will see a row of options: 1-VAR LIN LN ... The cursor should underline 1-VAR. Press . Enter the first value. Press . (Yes, twice. The second number is for frequency. If you wanted to enter the number five 10 times, you would type 10 before the second down arrow.) Enter the second value in your list and press . Continue until you're done with your list.
	two variables
		Press . You will see a row of options: 1-VAR LIN LN ... Press so the cursor underlines LIN (for linear regression). Press . Enter the first x-value and press . Enter the first y-value and press . Continue in the same manner for the other ordered pairs.

Calculating one-variable statistics
	mean (x)
		Press . You will see a row of options: n x Sx sx Sx ... Press so that x is underlined. The mean should appear on the screen.
	standard deviation for populations (s or sn)
		Press . You will see a row of options: n x Sx sx Sx ... Press so that sx is underlined. The population standard deviation should appear on the screen.
	standard deviation for samples (s or sn-1)
		Press . You will see a row of options: n x Sx sx Sx ... Press so that Sx is underlined. The sample standard deviation should appear on the screen.

Calculating two-variable statistics
	r (correlation)
		Press . You will see a row of options: n x Sx sx Sx ... Press so that r is underlined. The correlation should appear on the screen. (You can also press nine times to reach r.)
	regression coefficients
		slope
			Press . You will see a row of options: n x Sx sx Sx ... Press so that b is underlined. The slope should appear on the screen. (You can also press eight times to reach b.)
		y-intercept
			Press . You will see a row of options: n x Sx sx Sx ... Press so that a is underlined. The sample standard deviation should appear on the screen. (You can also press seven times to reach a.)

Calculating combinations and permutations
	combinations (nCr)
		Enter n. Press (you should see PRB above the key).  You will see a row of options: nPr  nCr  ! ...Press (so nCr is underlined). Enter r. Press .
	permutations (nPr)
		Enter n. Press (you should see PRB above the key).  You will see a row of options: nPr  nCr  ! ... (nPr should be underlined). Enter r. Press .

Turning the calculator off
	Press .

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 e^x as (e^x).

A: What is the mean and standard deviation of the following list of numbers?

15      16      20      21

1: Clear Memory	Not in stat mode:     In stat mode: (CLRDATA)
2: Enter Data	(1-VAR)
3: Compute the mean	(x)
4: Compute the population standard deviation	(sx)
5: Compute the sample standard deviation	(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.

1: Clear Memory	Not in stat mode:     In stat mode: (CLRDATA)
2: Enter Data	(LIN)
3: Compute the slope of the regression line	(b)
4: Compute the y-intercept of the regression line	(a)
5: Compute the correlation	(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.

1:Compute 10C6	(PRB) (nCr)
2: Compute 9P5	(PRB) (nPr)

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

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