<PRE><B>Question 352896</B>
An urn contains 10 red balls and 15 white balls. A ball is selected at random from the urn and not replaced. Then, a second ball is selected. Show that the probability that the second ball is red is the same as the probability that the first ball is red.
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P(red on 1st draw) = 10/25
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Note: The red is NOT replaced.
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P(red on 2nd draw) = 9/24
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Note: These probabilities are NOT the same.
They would be if you had replaced the 1st red drawn.
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Cheers,
Stan H.</PRE>