Let X be a Poisson random variable with mean , what is the ...

[Mimi]

  Let X be a Poisson random variable with mean , what is the P(X=2)?
 

  a.0.27
  b.0.54
  c.0.184
  d.1.36

Question 2

  If the random variable X has a binomial distribution with n = 30 and , what are the mean and standard deviation of X?
 

  a.
  b.
  c.
  d.E(X) =3, Var(X) = 2.1

[nekcihc358]

Answer to Question 1

correct: c

Answer to Question 2

correct: a

[Mimi]

Excellent

[bigsis44]

Thanks for the timely response, appreciate it