You are feeling impulsive, so you are going to have the owner of the pet store randomly pick a fish for your aquarium at home.
A tank at the pet store contains
spotted guppies, red barbs, red tetras, and golden platys. What is the probability (expressed as a percent) of getting a red fish from this tank?
How many red fish are in the tank? How many total fish are in the tank?
In a different tank that contains only golden platys, the probability of getting a female fish is
. If there are female fish in the tank, how many total fish are in the tank?
= number of total fish in the tank