Suppose we have a collection of 50 dogs: 15 Chihuahua-mixes, each weighing 3.6 kg, 15 Bully Breeds, each weighing 36 kg 2 Rottweilers, weighing 61.3 kg 8 Wire-haired Terriers, weighing 9.0 kg 8 Mix-Breed Hounds weighing 22.7 kg What are the percentage abundances of each dog AND calculate the weighted average weight of all the dogs? (note: the percentage abundance of each dog is the number of dogs of each breed divided by the total number of dogs. Eg the percentage abundance of Chihuahua-mixes is 15 Chihuahuas/50 dogs total = 0.3 (or 30%)) (3 pts)