A hat contains a number of cubes 15 red 10 white 5 blue and

A hat contains a number of cubes: 15 red, 10 white, 5 blue, and 20 black. One cube is chosen at random. What is the probability that it is:

a. 0 heads?

b. Exactly 1 head?

c. Exactly 2 heads?

d. At least 1 head?

e. Not more than 2 heads?

I think there is a type error head instead of red.

Let x be the no of heads.

X follows a binomial distribution with p = 15/50 = 0.30

a) P(X=0) = 0.70

b) P(x=1) = 0.30

c)exactly 2 red =0

d) Atleast one red =0.30

e) not more than 2 reds = 0.30