6KiB, 866x553, 431_d_hist.png View SameGoogleiqdbSauceNAO Can we really not integrate the PDF of the normal function?? Anonymous Wed 14 Oct 18:19:18 2020 No.12231431 ViewReplyOriginalReport Quoted By: >>12231859 Wtf I just learned that we can't integrate the PDF of the normal function. Are all of our probabilities only approximate?? How do we know the total area under the curve is 1 without integrating?