How to plot binopdf? Do i need a download?

I want to plot binopdf of X given certain values of n and p although when i endter binopd(x,3,.7) for example i get an error of "undefined function x" do i need to download an extension or how do i manually enter the binomial distribution?

Answer 1

[madhan ravi]

binopdf(X,3,.7) %you put x instead od X , matlab is case sensitive

[Allend Botani]

I tried X too and i got this

[madhan ravi]

upload the values of X here, type

whos X

in command window and paste the result here

[Allend Botani]

i dont know the values for X all i know is that X is a random variable with the PMF as the binomial distribution

[madhan ravi]

see so you have to define X with values you cant use it as a variable

[Allend Botani]

oh i see..just a side question, how qould i use a factorial symbol "!" in matlab? Thank you for your help

[madhan ravi]

Anytime :) , use factorial() , if my answer helped make sure to accept the answer