The position of the graphically represented keys can be found by moving your mouse on top of the graphic. The function keys do not count as a row.

Turn your calculator on
It's solar; it turns on automatically.
Clearing the memory
Press The A C Key: Row 1 Column 8.

 

Entering data
one variable
Press The Mode Key: Row 5 Column 4 The Six Key: Row 3 Column 7 (you should see STAT in peach on the key.) The word STAT should appear on the screen next to DEG. Enter the data, pressing The Sigma Plus Key: Row 4 Column 4 after each value.
two variables
The TI-37 Galaxy Solar does not do two variable statistics.

 

Calculating one-variable statistics
mean (x)
While still in STAT mode, press The Second Key: Row 1 Column 1 The Four Key: Row 3 Column 5 (you should see x in light blue on the key).
standard deviation for populations (s or sn)
While still in STAT mode, press The Second Key: Row 1 Column 1 The Six Key: Row 3 Column 7 (you should see sn in light blue on the key).
standard deviation for samples (s or sn-1)
While still in STAT mode, press The Second Key: Row 1 Column 1 The Five Key: Row 3 Column 6 (you should see sn-1 in light blue on the key).

Calculating two-variable statistics
r (correlation)
The TI-37 does not do regression. 
regression coefficients
slope
The TI-37 does not do regression. 
y-intercept
The TI-37 does not do regression. 


Calculating combinations and permutations
combinations (nCr)
Enter the n value. Press The Second Key: Row 1 Column 1 The Divided By Key: Row 2 Column 8 (you should see nCr in light blue on the key). Enter the r value and press The Equals Key: Rows 3,4,5 Column 9.
permutations (nPr)
Enter the n value. Press The Second Key: Row 1 Column 1 The Times Key: Row 3 Column 8 (you should see nPr in light blue on the key). Enter the r value and press The Equals Key: Rows 3,4,5 Column 9.

 

Turning the calculator off
It's solar. Put it in a dark place and it will turn off.

 

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  The A C Key: Row 1 Column 8
2: Enter Data  The Mode Key: Row 5 Column 4 The Six Key: Row 3 Column 7 The One Key: Row 4 Column 5 The Five Key: Row 3 Column 6 The Sigma Plus Key: Row 4 Column 4 The One Key: Row 4 Column 5 The Six Key: Row 3 Column 7 The Sigma Plus Key: Row 4 Column 4 The Two Key: Row 4 Column 6 The Zero Key: Row 5 Column 5 The Sigma Plus Key: Row 4 Column 4 The Two Key: Row 4 Column 6 The One Key: Row 4 Column 5 The Sigma Plus Key: Row 4 Column 4
3: Compute the mean   The Second Key: Row 1 Column 1 The Four Key: Row 3 Column 5 (x)
4: Compute the population standard deviation  The Second Key: Row 1 Column 1 The Six Key: Row 3 Column 7 (sn)
5: Compute the sample standard deviation  The Second Key: Row 1 Column 1 The Five Key: Row 3 Column 6 (sn-1)


    You should get a mean of 18, population standard deviation of 2.549509757 and a sample standard deviation of 2.943920289.

 

C: Find 10C6 and 9P5.
1:Compute 10C6

 The One Key: Row 4 Column 5 The Zero Key: Row 5 Column 5 The Second Key: Row 1 Column 1 The Divided By Key: Row 2 Column 8 The Six Key: Row 3 Column 7 The Equals Key: Rows 3,4,5 Column 9
2: Compute 9P5  The Nine Key: Row 2 Column 7 The Second Key: Row 1 Column 1 The Divided By Key: Row 2 Column 8 The Five Key: Row 3 Column 6 The Equals Key: Rows 3,4,5 Column 9


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

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