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A tank fish contains a number of fish, including 5 Fantails. If two fish are selected from the tank at random...

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by BTGmoderatorLU » Sat Oct 31, 2020 6:42 am

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Source: Princeton Review

A fish tank contains a numbers of fish, including 5 Fantails. If two fish are selected from the tank at random, what is the probability that both will be Fantails?

1) The probability that the first fish chosen will be a Fantail is 1/2
2) If the first selected fish is a Fantail, then the probability that the second selection is also a Fantail is 4/9

The OA is D
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Source: — Data Sufficiency |