SOLUTION: An urn has 7 balls that are identical except that 3 are white and 4 are red. A sample of 4 is selected randomly without replacement.
What is the probability that exactly 2 are whi
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What is the probability that exactly 2 are whi
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Question 1204024: An urn has 7 balls that are identical except that 3 are white and 4 are red. A sample of 4 is selected randomly without replacement.
What is the probability that exactly 2 are white and 2 are red?
What is the probability that at least 2 of the balls are white? Found 2 solutions by MathLover1, ikleyn:Answer by MathLover1(20849) (Show Source):
You can put this solution on YOUR website! .
An urn has 7 balls that are identical except that 3 are white and 4 are red.
A sample of 4 is selected randomly without replacement.
(a) What is the probability that exactly 2 are white and 2 are red?
(b) What is the probability that at least 2 of the balls are white?
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In the post by @MathLover1, her solution and the answer for part (b) both are INCORRECT.
I came to bring a correct solution for part (b).
