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A set S is composed of 20 multi-colored objects

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A set S is composed of 20 multi-colored objects
polymath257 Offline
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RE: A set S is composed of 20 multi-colored objects
March 21, 2020 at 2:05 pm
(March 18, 2020 at 5:19 am)WinterHold Wrote: I have a probability question that I need to solve:

A set S is composed of 20 multi-colored objects. 4 objects were chosen randomly from S.
What is the probability that 3 of the chosen objects be blue; knowing that there are 8 blue objects in S ?


So, I don't need hell loads of math theory. I only want steps for a solution and I'll be thankful.
Please help me.

Exactly three? Or at least three?
Find
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Atheist Forums › Science › Mathematics v
A set S is composed of 20 multi-colored objects

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RE: A set S is composed of 20 multi-colored objects - by polymath257 - March 21, 2020 at 2:05 pm

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