The position of the graphically
represented keys can be found by moving your mouse on top of the graphic.
I am counting every row as a row, even the top keys all labeled ^. For clarity,
I will refer to the leftmost key as f1, the next as f2, all the way over to the
rightmost key f6.
Turn your calculator on | |||||||||
Press . You should see the word ON below the key. | |||||||||
Clearing the memory | |||||||||
Press (the key says CLRDATA on the bottom) (for YES) |
Entering data | |||
one variable | |||
Press (SUM) You will see Item(1)? on the screen. Enter the first value in your list and press . You'll now see Item(2)? on the screen. Enter the second number and press . Continue until you're finished with the list. Finally, press . | |||
two variables | |||
Press (SUM)
(CALC)
(MORE)
(FRCST, that is, forecast)
(x-list) enter the x-values, pressing
after each. Then press
(y-list) and enter the
y-values, pressing after each. Finally,
press .
Note: If you want to calculate the population standard deviation, don't press , because you're going to add another number to the list. |
Calculating one-variable statistics
These instructions assume you have just finished entering the data. |
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mean (x) | ||||
Press (CALC) (MEAN). | ||||
standard deviation for populations (s or s_{n}) | ||||
Press (CALC) (MEAN) (to get back to the right menu) (CALC) (STDEV). | ||||
standard deviation for samples (s or s_{n-1}) | ||||
Press (CALC) (STDEV). |
Calculating two-variable statistics |
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r (correlation) | |||||
Press (CALC) (MORE) (FRCST) (CORR) | |||||
regression coefficients | |||||
slope | |||||
Press (CALC) (MORE) (FRCST) (M) | |||||
y-intercept | |||||
Press (CALC) (MORE) (FRCST) (B) |
Calculating combinations and
permutations
The HP 17bii does not have nCr or nPr commands. However, we can fudge it using the factorial function N! |
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combinations (nCr) | ||||
Enter n. Press (MATH appears in yellow on the bottom half of the key; the menu on the screen changes.) . Press . Enter r and press (MATH) . Press and enter the difference between n and r. Press (MATH) . | ||||
permutations (nPr) | ||||
Enter n. Press (MATH appears in yellow on the bottom half of the key; the menu on the screen changes.) . Press . Enter the difference between n and r and press (MATH) . |
Turning the calculator off | ||
Press (you should see off in yellow on the lower 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 | (CLRDATA) (YES) |
2: Enter Data | (SUM) |
3: Compute the mean | (CALC) (MEAN) |
4: Compute the population standard deviation | (CALC) (MEAN) (CALC) (STDEV) |
5: Compute the sample standard deviation | (CALC) (STDEV) |
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 | ( CLRDATA) ( YES) |
2: Enter Data | (SUM) (CALC) (MORE) (FRCST) (x-list) (y-list) |
3: Compute the slope of the regression line | (CALC) (MORE) (FRCST) (M) |
4: Compute the y-intercept of the regression line | (CALC) (MORE) (FRCST) (B) |
5: Compute the correlation | (CALC) (MORE) (FRCST) (CORR) |
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 _{10}C_{6} |
(MATH) (N!) (MATH) (N!) (10 - 6 is 4) (MATH) (N!) |
2: Compute _{9}P_{5} | (MATH) (N!) (9 - 5 is 4) (MATH) (N!) |
You should get _{10}C_{6 }= 210 and _{9}P_{5}=
15120.
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