A pet store has 7 puppies, including 4 poodles, 2 terriers,

Last updated: 7/29/2022

A pet store has 7 puppies, including 4 poodles, 2 terriers, and 1 retriever. Rebecka and Aaron, in that order, each select one puppy at random without replacement. Find the probability that Aaron selects a retriever, given Rebecka selects a retriever. The probability is (Type an integer or a simplified fraction.)