InvNorm Calculator

[@theodoresweger4948]

Well done THanks

[@ishan.guitar]

hi i use a ti84 plus C silver edition, but i do not have the tail function for invnorm, how can i fix it?

[@yesicandomath7226]

So in your case your calculator is probably just tail left, meaning that if you need to find the P(x > a) = 0.10 for example where the area under the curve shaded to the right is 10% or 0.10, you would have to enter in your calculator the exact opposite: 1 - 0.10 = 0.9 since your calculator only works tail left.