HP 20b statistical distributions

[Dieter]

(02-26-2015 07:58 PM)Gerald H Wrote:  You might find this interesting:

Hmmm... unlike your 30b examples, I consistently get wrong results. ;-)

In the meantime I found out that the Normal quantile seems to work fine for probabilities ≤ 1E–14 and in the center between 0,1354 and 0,8646. For other arguments (i.e. most cases with significance for real life) the results are off. I also tried some Student quantiles far out in the tails (with 20 dof), but it did not get better than 5 decimals, or a few more closer to the center. #-)

Dieter

Edit: updated the range where the Normal quantile seems to be correct.