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 . This will clear the screen. Now press (you should see STAT written above the list key) (you should see the word ClrList on the screen) (you should now see ClrList L1, L2 on the screen). Press and you should see Done on the screen.

Entering data
	one variable
		Press . You will see three columns labeled L1, L2 and L3. A cursor will be blinking in L1. Enter the first number in your list, then press . Enter the second number in your list and press . Continue in this fashion.
	two variables
		Press . Enter the x-values in your list as suggested in the one variable section. Press . The cursor will now be in L2. Enter the y-values in the corresponding order.

Calculating one-variable statistics
	mean (x)
		Press (you should see 1-Var Stats on the screen) . You will see a list of values. The mean is the first item on the list. It's denoted x.
	standard deviation for populations (s or sn)
		Press (you should see 1-Var Stats on the screen) . You will see a list of values. The population standard deviation is the fifth item on the list. It's denoted sx.
	standard deviation for samples (s or sn-1)
		Press (you should see 1-Var Stats on the screen) . You will see a list of values. The sample standard deviation is the fourth item on the list. It's denoted sx.

Calculating two-variable statistics These commands may not work if the Diagnostic On flag isn't set. To set it, press (you should see CATALOG written above the key). Press until you reach DiagnosticOn. (The commands are in alphabetical order.) Press . You should see DiagnosticOn and Done on the screen.
	r (correlation)
		Press (you should see LinReg(ax+b) on the screen) . The correlation coefficient is labeled r.
	regression coefficients
		slope
			Press (you should see LinReg(ax+b) on the screen) . The slope is labeled a.
		y-intercept
			Press (you should see LinReg(ax+b) on the screen) . The y-intercept is labeled b.

Calculating combinations and permutations
	combinations (nCr)
		Enter the n-value. Press (PRB should be highlighted). You will see a menu of choices. Press (that is 4: nCr). Enter the r value and press  .
	permutations (nPr)
		Enter the n-value. Press (PRB should be highlighted). You will see a menu of choices. Press (that is 3: nPr). Enter the r value and press .

Turning the calculator off
	Press . (You should see OFF written above 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	(STAT)
2: Enter the data
3: Compute the mean	(1-Var Stats) ( x )
4: Compute the population standard deviation.	(1-Var Stats) ( sx )
5: Compute the sample standard deviation:	(1-Var Stats) ( 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	( STAT)
2: Enter Data
3: Compute the slope of the regression line	(LinReg(ax+b)) (a)
4: Compute the y-intercept of the regression line.	(LinReg(ax+b)) (b)
5: Compute the correlation.	(LinReg(ax+b)) (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)
2: Compute 9P5	(PRB)

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

Go to: