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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.

  1. 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?

  2. 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?

    If = number of total fish in the tank