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
	Press (you should see CS, for Clear Stat, on the top half of the sigma-plus key). The screen will show Clr YN?. Press (you should see Y above the key on the left). The screen will show Cleared.

Entering data
	one variable
		Enter the first number and press . If the number shows up more than once in the list, you can just press as many times as the number appears. Enter the second number and press . Continue likewise for the entire list.
	two variables
		Enter the first x-value. Press , then the first y-value. Press . Do the same for the other pairs in the list.

Calculating one-variable statistics
	mean (x)
		Press . (You should see x on the top half of the seven key.)
	standard deviation for populations (s or sn)
		Press . (You should see sxn on the top half of the eight key.)
	standard deviation for samples (s or sn-1)
		Press . (You should see sxn-1 on the top half of the nine key.)

Calculating two-variable statistics
	r (correlation)
		Press . (You should see COR above the minus key.)
	regression coefficients
		slope
			Press . (You should see SLP above the nine key.)
		y-intercept
			Press . (You should see ITC above the eight key.)

Calculating combinations and permutations
	combinations (nCr)
		Enter n. Press (you should see nCr above the right parenthesis key). Enter r and press .
	permutations (nPr)
		Enter n. Press (you should see nPr above the times key). Enter r and press .

Turning the calculator off
	Press . (You should see OFF on the top half of the 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 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	(CS)
2: Enter the data
3: Compute the mean	(x)
4: Compute the population standard deviation.	(sxn)
5: Compute the sample standard deviation:	(sxn-1)

    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	(CS)
2: Enter Data
3: Compute the slope of the regression line	(SLP)
4: Compute the y-intercept of the regression line.	(ITC)
5: Compute the correlation.	(COR)

    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	(nCr)
2: Compute 9P5	(nPr)

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

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