Butch has a collection of 40 vinyl records from throughout the 20th century including nine from the 40s two from the 50s three from the 60s four from the 70s, and oight
from the bos if he randomly selects one from his collection of 40, find the probability it will be from each of the following decades
the probability that it is from the 40$ ls
(type an integer or a simplified fraction)
the probability that it is from the 50s is
(type an integer or a simplified fraction)