Question

A pet store has 12 ​puppies, including 3 ​poodles, 5 ​terriers, and 4 retrievers. if rebecka and​ aaron, in that​ order, each select one puppy at random without​ replacement, find the probability that aaron selects a​ retriever, given that rebecka selects a poodle.

Answer 1

Total number of puppies = 12
Where;
Poodles = 3
Terriers = 5
Retrievers = 4

After Rebecca selects a poodle, total number of puppies remaining = 12 -1 =11
Then,
Probability of Aaron selecting a retriever:

P(R) = Number of retrievers/New total = 4/11