Question about Texas Instruments TI-30XA Calculator

I'm trying to use the TI-30Xa calculator for solving problems for a Biostatistics class but i'm finding difficulty knowing how to change it to the statistics mode so i could calculate the mean, median, SD, etc so could you tell me how to do that ?

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

http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=18

Posted on Jan 01, 2009

Clear the statistics registers with 2nd [CSR]. Add the data points with Sigma+. Errors can be corrected with 2nd [Sigma-]. Calculate the mean with 2nd [xbar].

See the example on page 11 of this guidebook.

See the example on page 11 of this guidebook.

Feb 24, 2013 | Texas Instruments TI-30XA Calculator

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

http://education.ti.com/calculators/downloads/US/Guidebooks/Detail?id=6132

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

http://education.ti.com/calculators/downloads/US/Guidebooks/Detail?id=6132

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

The TI-30XA does not have to be switched to a statistics mode, the operations are available all the time. The choice of operations are somewhat limited; the calculator offers statistics functions for one dimensional data sets only (no linear interpolation of (x,y) value pairs, for example):

Example: calculate the average and standard deviation of the set { 3, 4, 5, 5, 5, 5, 6 }.

- [2nd] [CSR] - erase statistics data
- [] - add a number to the sample set
- [2nd] [] - remove a number from the sample set
- [2nd] [FRQ] - multiple entry of the same sample value
- [2nd] [n] - sample set size
- [2nd] [] - sum of all sample elements
- [2nd] [] - sum of the squares of all sample elements
- [2nd] [] - average of the sample set
- [2nd] [] - standard deviation (sample set is a complete set)
- [2nd] [] - standard deviation (sample set is a subset of a larger set)

Example: calculate the average and standard deviation of the set { 3, 4, 5, 5, 5, 5, 6 }.

- [2nd] [CSR] - erase stat memory
- 3 [] 4 [] 5 [2nd] [FRQ] 4 [] 6 [] - enter the data, note the use of [2nd] [FRQ] to enter the four occurrences of "5". Entering 5 [] four times would have done the same.
- [2nd] [] - display the average of the set, (4.714...)
- [2nd] [] - display the standard deviation of the set (0.8806...)

Jan 25, 2011 | Texas Instruments TI-30XA Calculator

The 30XA doesn't have a statistical mode; all of the statistical functions are available at all times.

2nd [CSR] clears the statistical registers, Sigma+ adds a data point, Sigma- deletes a data point, 2nd [x-bar] gives the mean, 2nd [sigma-x-n] and 2nd [sigma-x-n-minus-one] give the population and sample standard deviation.

For full details, refer to the statistics section in the manual. If you don't have a manual, you can download a guidebook from

http://education.ti.com/educationportal/sites/US/productDetail/us_ti30xa.html?bid=6

2nd [CSR] clears the statistical registers, Sigma+ adds a data point, Sigma- deletes a data point, 2nd [x-bar] gives the mean, 2nd [sigma-x-n] and 2nd [sigma-x-n-minus-one] give the population and sample standard deviation.

For full details, refer to the statistics section in the manual. If you don't have a manual, you can download a guidebook from

http://education.ti.com/educationportal/sites/US/productDetail/us_ti30xa.html?bid=6

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

Press SHIFT x^2 to use the mean function.

Refer to the "One-Variable Statistics" section in the manual (page 9).

Refer to the "One-Variable Statistics" section in the manual (page 9).

Aug 28, 2010 | Texas Instruments TI-30XA Calculator

The truth of the matter is that there is no statistical mode per se. You just start entering data in a specific sequence.

If there is data in the statistics register (remnant of and old calculation) you must start by clearing old values :[2nd][CSR].

Here is a screen capture with an example that uses frequencies.

If there is data in the statistics register (remnant of and old calculation) you must start by clearing old values :[2nd][CSR].

Here is a screen capture with an example that uses frequencies.

Aug 14, 2010 | Texas Instruments TI-30XA Calculator

The TI-30XA is a scientific calculator with many functions. You can calculate problems with fractions and decimals, as well as solve problems of probability and functions. A scientific calculator computes the number sentence you type in using the order of operations: parentheses first, then roots and exponents, then division and multiplication and, finally, addition and subtraction.

How to Use a TI-30XA
Step 1Press the [ON/C] key to turn on the calculator. Press the [OFF] key to turn it off. To use the calculator in solar mode, put the solar panel in the light and then press the [ON/C] key. To turn it off when in solar mode, slide the calculator cover back on and it will automatically shut off.

Step 2Replace the batteries by first removing the cover and placing it face down. Use a Phillips-head screwdriver to unscrew the back panel. Remove the back panel and change the batteries. Screw the back panel back on. Press [OFF] [ON/C] and [ON/C].

How to Use a TI-30XA

Aug 08, 2010 | Texas Instruments TI-30XA Calculator

You can't, the TI-30XA is a one variable statistical calculator, so you can't do two variable statistics with it.

You need to step up to the TI-35X or the TI-30X IIS

You need to step up to the TI-35X or the TI-30X IIS

Oct 02, 2008 | Texas Instruments TI-30XA Calculator

I already answered a Q like this - you can't do 2 variable statistics on the TI-30XA, it only does one variable statistic.

To do 2 variable stat like linear regression, you need the TI-36X or TI-30X IIS, or comparable HP, casio etc

To do 2 variable stat like linear regression, you need the TI-36X or TI-30X IIS, or comparable HP, casio etc

May 17, 2008 | Texas Instruments TI-30XA Calculator

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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