Share
Explore BrainMass

Probability

The animal colony in the reseach department contains 20 male rats and 30 female rats. Of the 20 males, 15 are white and 5 spotted. Of the 30 females, 15 are white, and 15 are spotted. Suppose that you randomly select 1 rate from this colony:

a)Find the Joint probability table including the marginal probability.
b) what is the probability of obtaining 1 female
c)what is the probability of obtaining a white male
d) which selection is more likely; a spotted male or a spotted female.
e)Given that a rat is female, what is the probability that it is spotted.

Solution Preview

  White Spotted Total
Male 15 5 20
Female 15 15 30
Total 30 20 50

a)Find the Joint probability table including the marginal probability.
Prob White Spotted ...

Solution Summary

The animal colony in the reseach department contains 20 male rats and 30 female rats. Of the 20 males, 15 are white and 5 spotted. Of the 30 females, 15 are white, and 15 are spotted. Suppose that you randomly select 1 rate from this colony:

a)Find the Joint probability table including the marginal probability.
b) what is the probability of obtaining 1 female
c)what is the probability of obtaining a white male
d) which selection is more likely; a spotted male or a spotted female.
e)Given that a rat is female, what is the probability that it is spotted.

$2.19