Question 1179420

a pet store has seven puppies including 4 poodles, 2 terriers, and 1 retriever. If Rebecca and Aaron, in that order, each select one puppy at random, with replacement (they may both select the same one),


find the probability that
a) both select a poodle===> (4/7)^2


b) Rebecca selects a retriever and Aaron selects a terrier
====>(1/7)(2/7) = 2/49


 
c) Rebecca selects a terrier and Aaron selects a retriever
===> (2/7)(1/7) = 2/49

d) both select a retriever::: (1/7)^2 = 1/49