2020 Jan

Question 5

Given that a group of dogs consists of five brown males, three brown females,

four white males, four white females, five black males and four black females.

Compute the probability of selecting at random a white male dog.

Compute the probability of selecting at random a female dog, if the dog

is brown.

(iii) Compute the probability of selecting at random a black dog, if the dog is

a female

Compute the mean and variance of X