The position of the graphically represented keys can be found by moving your mouse on top of the graphic.
| Turn your calculator on | |||||||||
Press  . |
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| Clearing the memory | |||||||||
To clear the entire memory, press 
(says EDIT on the screen above the key), then 
(says CLRxy on the screen above the key). |
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| Entering data | |||
| one variable | |||
Press
to
enter statistics editing mode. We will use the name xStat for our list.
So
press  .
Enter the first number, then press 
(twice-to get past the y-values). Enter the next number, then
.
Continue until all the data has been entered. As your final step, press 
to signal the end of the data set.
|
|||
| two variables | |||
| Press
to
enter statistics editing mode. We will use the names xStat and yStat for our
list. Press .
Type in the first x-value, then press .
Type in the corresponding y-value, and press .
Type in the second x-value, then ,
the the second y-value, then .
Continue until all the data has been entered. As your final step, press
to signal the end of the data. |
|||
| Calculating one-variable statistics | ||||
| mean (x) | ||||
|
Press
.
Hit
(twice). Press the 1-VAR option ().
The mean is listed as x.
|
||||
| standard deviation for populations (s or sn) | ||||
| Press
.
Hit
(twice). Press the 1-VAR option
().
The population standard deviation is listed as sx. |
||||
| standard deviation for samples (s or sn-1) | ||||
| Press
.
Hit
(twice). Press the 1-VAR option
().
The sample standard deviation is listed as
Sx. |
||||
|
Calculating two-variable statistics |
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| r (correlation) | |||||
|
Press
.
Hit
(twice). Press the
LINR option () The
correlation is listed as corr = .
|
|||||
| regression coefficients | |||||
| slope | |||||
| Press
.
Hit
(twice). Press the
LINR option () The
slope is listed as b= . |
|||||
| y-intercept | |||||
| Press
.
Hit
(twice). Press the
LINR option ().
The y- intercept is listed as a= . |
|||||
| Calculating combinations and permutations | ||||
| combinations (nCr) | ||||
Enter the n value. Press 
(you should see MATH above the key). You should see options on the screen. We want the
second option (PROB): press , we see more options: nCr is the third, so
press  , enter the r value, press
. |
||||
| permutations (nPr) | ||||
| Enter the n value. Press
(you should see MATH above the key). You should see options on the screen. We want the
second option (PROB): press , we see more
options: nPr is the second, so
press , enter the r value, 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
ex as 
(ex).
A: What is the mean and standard deviation of the following list of numbers?
15 16 20 21
| 1. Clear Memory |
(EDIT)
(CLRxy) |
| 2: Enter Data |
 
|
| 3: Compute the mean |
(OneVa) 
(LIST)
(NAMES)
 |
| 4: Compute the standard deviation (population) |
(OneVa)
(LIST)
(NAMES)
|
| 5: Compute the standard deviation (sample) |
(OneVa)
(LIST)
(NAMES)
|
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 |
(EDIT)
(CLRxy) |
| 2: Enter Data |
|
| 3: Compute the slope of the regression line |
(STAT)
(CALC)
(LinR)
(LIST)
(NAMES)
(xStat) 
(yStat)
|
| 4: Compute the y-intercept of the regression line |
(STAT)
(CALC)
(LinR)
(LIST)
(NAMES)
(xStat)
(yStat)
|
| 5: Compute the correlation |
(STAT)
(CALC)
(LinR)
(LIST)
(NAMES)
(xStat)
(yStat)
|
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 |
(MATH)
(PROB)
(nCr) |
| 2: Compute 9P5 | 
(MATH)
(PROB)
(nPr)
|
You should get 10C6 = 210 and 9P5 =
15120.
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