ParkerBoling ParkerBoling
  • 04-05-2018
  • Mathematics
contestada

A fish tank contains 18 goldfish and 22 guppies. If you randomly select 2 fish, what is the probability that they are both goldfish?

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khadizahoqueroc
khadizahoqueroc khadizahoqueroc
  • 04-05-2018
The total number of fish available in the tank is (18 + 22) = 40.  The probability for 1 goldfish to be taken out would be 18/40. Now, after drawing the first fish, the probability to get another goldfish would be 17/39. And the probability to draw 2 goldfish would be the product of both probabilities. P = (18/40)(17/39) = 51/260 So,the answer is B.
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mohayon2020 mohayon2020
  • 30-01-2019

Answer:

b

Step-by-step explanation:


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