The weights of a certain dog breed are approximately normally distributed with a mean of μ
= 55 pounds, and a standard deviation of
σ
= 7 pounds.

A dog of this breed weighs 49 pounds. What is the dog's z-score? Round your answer to the nearest hundredth as needed.
z
=

A dog has a z-score of -0.63. What is the dog's weight? Round your answer to the nearest tenth as needed.
pounds
A dog has a z-score of 0.63. What is the dog's weight? Round your answer to the nearest tenth as needed.
pounds