① Normal distribution X~N (0,1)
Check the x value according to the p value, the function expression is =NORM.S.INV($A3+B$2), and the parameter is the P value.
Check the p value according to the x value, the function expression is =NORM.S.DIST($M3,1), the parameter is the X value, the logical value 1 means X<=x, 0 means X<x, with or without the equal sign In the discrete type, the intersection is distinguished, and in the continuous type, the probability of the boundary point is 0, so the logical value is meaningless in the continuous type, and all take 1. F(X>x)=1-F(X<=x)
② Poisson distribution is generally an approximation of binomial distribution, lambda is approximately np, the function is =POISSON.DIST(A4,$B$2,0) the parameters are k value in turn, lambda=np, logical value X<x is 0, X<=x is 1, X=x is (X<=x)-(X<x)
