[BlindMath] Z-score & Percentile Charts.

[Jonathan Godfrey]

Ray,

There is no analytic solution to the integral of the formula describing the normal distribution curve. That's why the tables exist.

You could  use software in a tutoring situation. The student will of course need to be confident using the tools they are allowed within their course. Even Excel will do.


HTH,
Jonathan




-----Original Message-----
From: BlindMath <blindmath-bounces at nfbnet.org> On Behalf Of Ray McAllister via BlindMath
Sent: Tuesday, November 7, 2023 3:07 AM
To: 'Blind Math list for those interested in mathematics' <blindmath at nfbnet.org>
Cc: Ray McAllister <raymcal at att.net>
Subject: [BlindMath] Z-score & Percentile Charts.

Hi, how are you/  Does anyone out there know where I can find an accessible chart online for statistics with Z-score and percentile and vice versa.  The ones I've found don't seem to open up to be readable.  I probably need one chart for each direction.  I'm tutoring someone in math, and she's doing some statistics, and I wish to find a chart I could check along with her to make sure she's doing the work right.  Or, is there just a formula I could use, that's accessible, to calculate it by hand?  If someone has a chart for these, feel free to just email it to me.

Thanks,

Ray McAllister.





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