In a fish tank, there are 24 goldfish, 2 angel fish, and 5 guppies. If a fish is selected at random, what is the probability that it is a goldfish or an angel fish?

Question

Hunter Aldridge · Accepted Answer

Goldfish and angelfish are mutually exclusive, so simply add together the respective probabilities.

P(goldfish ) #= 24/(24+2+5)=24/31# P(angelfish ) #= 2/(24+2+5)=2/31# P(goldfish or angelfish ) #=24/31+2/31=26/31# I hope that was useful.

Grace Agate · Answer

undefined To find the probability of selecting either a goldfish or an angel fish from the tank, we add the probabilities of selecting each type of fish.

Total number of goldfish + angel fish = 24 (goldfish) + 2 (angel fish) = 26

Total number of fish in the tank = 24 (goldfish) + 2 (angel fish) + 5 (guppies) = 31

Probability of selecting a goldfish or an angel fish = (Number of goldfish + Number of angel fish) / Total number of fish
Probability = (24 + 2) / 31
Probability = 26 / 31

Therefore, the probability of selecting either a goldfish or an angel fish from the tank is 26/31.