GGB Classic 5 offline and online calculator give different answers

tphanyamada shared this question 2 years ago

Dear all,

Could you please help me to see what's wrong with my file?

It is a simple calculation for z value in the statistics.

The calculation in the file is incorrect.

I use the same code for the online ggb calculator and I got the correct answer.

Could you please let me fix this file?

Thank you,

Comments (5)


both of them work fine for me in version 5 and 6 classic for desktop


Please state

  • what you got
  • what you expected to get


(and check Options -> Rounding)


Hi Michael,

My student took this picture on her online test.

I did the same problem but we get different p-value.

Other numbers are the same.



Thank you mathmagic and Michael!

To Michael,

I set the answer to 4 decimal places.

As I mentioned in my other post, this app sometimes doesn't work.

I've been using this app for several years and got no complaints.

This semester some of my students complained that they got wrong answers.

I worked with them on the spot. I got a wrong answer too.

I checked my file and punch in the number.

It worked. I showed to my students. I got wrong.

I posted the file on this site.

You got it right. Now I got the right answer as well.

I wonder if anyone has the same problem like me.

Thank you so much for your help.

© 2022 International GeoGebra Institute