Question about Texas Instruments TI-30XA Calculator

# How to calculate standard deviation on TI-30XS

How to calculate standard deviation using a TI-30XS calculater

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• J_lovy_1 Feb 10, 2009

how to calculate the standard divation of 1,3,4,6,9,19 using the TI-30xs calculator

• Anonymous Apr 06, 2009

How the **** does this thing work!

• Anonymous Apr 10, 2009

I need to find standard deviation for 6 numbers on a TI 30 x a

×

SOURCE: standard deviation

Enter the first number, 1.
Hit the σ+ (Sigma+) key. ( n=1 will appear in the window)
Enter the second number, 1.
Hit the σ+ (Sigma+) key. (n=2 will appear in the window)
. . . . .
Enter the last number, 7.
Hit the σ+ (Sigma+) key. (n=7 will appear in the window)
Hit 2nd x2 (by hitting the 2nd key you are actually selecting the x-bar written above the key.) This gives you the mean.
Hit 2nd sqrt(x). This gives you the sample standard deviation which we will use in class.
Make sure you turn your calculator off and on for new data sets.

Posted on Jan 26, 2008

SOURCE: Standard Deviation

When I enter some series of data and check the descriptive statistics, every time I come to the standard deviation the calculator shows me Error 1 message.

Posted on Oct 20, 2008

SOURCE: standard deviation

Is there a PDF with the Statistical procedures for this product? I bought my Casio FX-115 used (second hand). No instructions. I need help using the Statistical functions for my Stats classes:
Correlation Coefficient
Standard Deviation/Variance
Chi-Square
x-x(bar) summations
HELP!

Posted on Nov 19, 2008

You can get instructions from;
http://www.geocities.com/calculatorhelp/ti30xa.htm

It's straight forward to follow.

Posted on Apr 18, 2009

SOURCE: Standard Deviation

Hello,
You must first enter the data you are doing statistics on.

After you finish entering the data, do as the figure below describes.

Hope it helps.

Posted on Sep 20, 2009

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