Recent content by Yulia_sch

hello, i need to prive that for a binomial r.v X E[X]=NP and VAR(X)=NP(1-P). I tried to prove it using the deffinition of expectation: E[x]=\sum xi \stackrel{N}{i} p^{i}(1-p)^{n-i} now what? thanks...

Yes,It's a graphical display of tabular frequencies.

hello, How do i find a Distribution Function based on Measurements? Y.S