Texas Instruments TI-84 Plus Silver Edition Graphic Calculator Logo
Gina Duron Posted on Oct 26, 2013
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My Ti-84 plus silver is giving me wrong answer when I use normalcdf. I used video guide to make sure my entries were correct. lower:280 upper: 1E99 mu:272 sigma:9 I get answer .81296 the video and correct answer get .1870. Why? I reset calculator but still does it.

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This was asked two years ago, but if anyone finds this page maybe this will help:
Instead of 1E99, try using 10^99. They have the same value but it would appear that some calculators have trouble with 1E99. It fixed it for me.

  • Karina de la Rosa
    Karina de la Rosa Mar 21, 2021

    It's 2021 and I'm not sure you'll read this, but thanks so much! I've been having a HEADACHE because 1E99 didn't work for me before. THANK YOU!

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  • Posted on Oct 26, 2013
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That is what I get with your numbers on the TI84 Plus Silver Edition 0.1870313608. I get the same on the TI83 Plus. What can I say?. Apart from an error entering the numbers ( a 6 for a 9, a 3 for an 8) I cannot think of anything else. Sorry.

Testimonial: "Thank you, I am entering numbers correctly, so I have no idea what is wrong with this!!"

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  • k24674 Oct 27, 2013

    Archive any program/application that is not archived and reset ALL. If that does not clear the problem try reinstalling the OS or upgrading it to the latest version.

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    Frank Muellar Mar 28, 2017

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5 Related Answers

Anonymous

  • 30 Answers
  • Posted on Oct 21, 2008

SOURCE: Scroll up

Sorry dude but u cant do that. There is no way around it... Youll have to wriite them down or something.

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Anonymous

  • 11 Answers
  • Posted on Mar 18, 2009

SOURCE: comma key on TI-84 Plus Siver Edition calculator.

The comma key on the TI 84 SE is above the 7 key, and it is just left of (, right of x squared, and below SIN. thats where the "," key is. If you're asking something else, please clearify. My understanding is that you don't know where the comma key is. 

Anonymous

  • 30 Answers
  • Posted on Apr 15, 2009

SOURCE: My TI-84 Plus gives answer as 2.145274703E14, what Is E?

E is the calculators form of scientific notation. so 2.145274703E14
is really 2.145274703 x 10^14 or 214527470300000

gdcroft

  • 192 Answers
  • Posted on May 29, 2009

SOURCE: Find the antilog on the TI-84 Plus for finding pH in chemistry problems

I'm not specifically familiar with the TI83 or TI84 but I've used a lot of TI calculators in my time, so I'll give it a try. If your trying to find the antilog of a number in base 10 enter the number and hit the (10 to the X) button. If you're trying to find the antilog of a number in in base e (natural log), enter the number and hit the (e to the X) button.

Anonymous

  • 1 Answer
  • Posted on Jun 07, 2009

SOURCE: antilog for ti-84 plus silver edition calculator

"2nd" + "log"

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