Respuesta :

Answer:

For this case we know that the random variable of interest would be X and the distribution for X is given by:

[tex] X \sim Bin (n,p)[/tex]

And by properties of this distribution the expected value for this case is:

[tex] E(X)= np[/tex]

And the variance :

[tex] Var(X)= np(1-p)[/tex]

Step-by-step explanation:

For this case we know that the random variable of interest would be X and the distribution for X is given by:

[tex] X \sim Bin (n,p)[/tex]

And by properties of this the expected value for this case is:

[tex] E(X)= np[/tex]

And the variance :

[tex] Var(X)= np(1-p)[/tex]