Question about Texas Instruments TI-30XA Calculator

# How do I calculate the mean on the TI-30XA - Texas Instruments TI-30XA Calculator

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Hello,
Here is an exemple from the manual.
Hope it helps.

Posted on Sep 17, 2009

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Posted on Jan 02, 2017

It does. For instance, to get the reciprocal of 4, enter the following sequence: 4 [1/x] (this last key to be found third row down, second black key in). The decimal 0.25 will appear as the result. Convert this, if you want, to the fraction 1/4 by pressing the yellow function key [2nd], then {F<>D] located bottom, far left. Hope that's what you wanted!

Posted on Oct 04, 2007

Press 0 STO 2 to clear your memory 2 (M2). to clear M1 and M3 press 0 STO 1 or 0 STO 3

Posted on May 27, 2008

SOURCE: TI-30XA

Use the inverse log key sequences "2nd LN" or "2nd LOG" depending on whether you are using natural logs or logs to base 10

Posted on Dec 31, 2008

The battery is an EPX76

Posted on Nov 17, 2009

hey det44 your a ******* thats on a ******* different calculator ***** ****

Posted on Mar 08, 2010

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## Related Questions:

### Where is s on the ti-30xa calculator

If you mean the standard deviation, there are two shifted keys on the third row marked with a lower-case Greek sigma. sigma_xn is the population standard deviation and sigma_xn-1 is the sample standard deviation.

Nov 12, 2013 | Texas Instruments TI-30XA Calculator

### Locate a matrics on a TI-30XS calculator

If you mean matrix, then I am sorry, but neither the TI-30Xa nor the TI-30XS calculators handles matrices.

Oct 18, 2011 | Texas Instruments TI-30XA Calculator

### I can't seem to get my calculator into statistics mode. could you please explain it very clear. i must be mising something. i have a texas instrument calculator(Ti-30xA).thank you.

The TI-30Xa does not have a statistics mode. That statistics operations are available at all times, just like addition and subtraction. Just enter the data with Sigma-plus and then calculate the desired statistics---mean, standard deviation, and so forth.

Full details are in the "One-Variable Statistics" section of the guidebook (page 9 in my copy). If you need the guidebook, you can download one from

Jun 23, 2011 | Texas Instruments TI-30XA Calculator

### How do I convert from decimals to fraction with my TI-30X IIS calculator? I need the step by step process

The following examples will demonstrate how to convert decimals into fractions using the TI-30Xa and TI-30Xa Solar. Please be aware that TI-30Xa Solar School Edition calculators do not have this functionality.

Example: Convert .25 to 1/4
- Input .25, press [2nd][<--] (says F<>D above it).

** F<>D means fraction to decimal, decimal to fraction.

Example: Convert 1.38 to 1_19/50

- Input 1.38, press [2nd][<--].

Example: Convert 9.75 to 9_3/4

- Input 9.75, press [2nd]{<--].

Mar 08, 2011 | Texas Instruments TI-30XA Calculator

### Can i do sigma notation on a ti-30xa calculator?

No. There are some keys on the TI-30XA that may make you think so, but they are statistical operations. For example, you can enter values using the Sigma+ key and the TI-30XA can give you the sum of the values entered, sum of the squares, mean value, standard deviation and so on.

You cannot do calculations like "Give me the sum of all integers from 1 to 100" with the TI-30XA, you'd need a far more sophisticated calculator.

Jan 06, 2011 | Texas Instruments TI-30XA Calculator

### Where is the e button on a ti-30xa calculator

If you mean e^x, it's the shifted function of the LN key on the top row of the keyboard. If you mean the enter-exponent, it's the EE key just above the 7 key.

Nov 11, 2010 | Texas Instruments TI-30XA Calculator

### What kind of batteries and where can I find batteries for my TI-30A?

I hope you mean the TI-30XA, since TI never released a TI-30A.

The TI-30XA uses two A76 batteries, also known as 357. You should be able to find them at just about any department, electronics, or office-supply store.

Here's the full scoop on changing batteries:
http://epsstore.ti.com/OA_HTML/csksxvm.jsp?nSetId=71660

Oct 21, 2010 | Texas Instruments TI-30XA Calculator

### Difficulty changing to the Statistics mode

Download the small instruction book from TI web site, keystrokes and examples at pages 10/11

Mar 22, 2008 | Texas Instruments TI-30XA Calculator

### Median for statistics

The TI-30XA doesn't give the median of a sequence of entered values, just the mean, std dev, and other one variable stats

Jan 27, 2008 | Texas Instruments TI-30XA Calculator

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