Question about Casio FX-7400G Plus Calculator

# Texas calculator which key do I use to solve a % problem on my texas calculator ti-30xii

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• Casio Master

Use the % key.

Posted on Aug 23, 2010

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Posted on Jan 02, 2017

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## Related Questions:

### My Texas Instruments I-30XIIS keeps giving me a DEG and an arrow and I don't know how to take it of

The DEG is probably for degrees. A calculator normally has to be set to degrees, radians, or gradians. A short form of one of these three will typically always be displayed on a calculator. The arrow seems to be a storage of what has been keyed.

Good luck,

Paul https://education.ti.com/en/us/guidebook/details/en/706B2B75F7D3464EBE6A8F8BE9F00EAC/30xii

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The only known equation for the cumulative binomial distribution is the sum of the individual binomial probabilities. Some more sophisticated (and more expensive) calculators have that equation built in, but the 30xii does not.

If n>30 and n*p>5 and n*(1-p)>5 then you can approximate the cumulative binomial with the normal probability function, but again the 30xii does not have that built in.

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http://education.ti.com/guidebooks/scientific/30xii/teacher_guide/30xiitg-eng_.pdf page 108 may shed light on this. This may not be your exact model but the keys work the same.

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If you are just trying to solve a simple quadratic equation by entering coefficients, this calculator does have those features. The TI-83 is a better choice for that kind of function.

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You can download the TI-30Xa guidebook from the manufacturer's web site at

The TI-30Xa replaced the TI-30X within a year. The only enhancement was the added Constant key.

The TI-30XII, introduced about five years later, is a significantly different calculator, incorporating, among other things, a two-line display.

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Here's where you can get 2 guides for your calculator (1 quick reference card, and a longer manual):

To calculate square root of 25, enter
[2nd Function]
[square root key]
25
[close parenthesis key]
[ENTER key]

the TI 30XII-S calculator then calculates and displays the answer, 5.

May 13, 2011 | Craftsman Drills

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Hi,

Hope this solves your problem. Thanks.

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### Need to know how to work this

Look at the manual:
Rate me, thanks.

Jun 17, 2009 | Texas Instruments TI-30 XIIS Calculator

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Here:
Rate me, thanks.

May 15, 2009 | Texas Instruments TI-30 XIIS Calculator

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First press [2nd] button then [root button] then the number you want then [ ) ] close and enter.

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