Math511Exam1Solutions

A what is the probability that you choose a red marble

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Unformatted text preview: mecock across the finish line? Solution: Let A be the event that of the first six runners 2 were gamecocks and 4 were tigers. Let B be the event that the 7th runner is a gamecock. ⎛ 8 ⎞ ⎛ 12 ⎞ ⎝ ⎠⎝ ⎠ 3 ⎜ 2⎟ ⎜ 4 ⎟ Then we want the value of P ( A ∩ B ) = P ( B | A ) P ( A ) = × . ⎛ 20 ⎞ 7 ⎜ 6⎟ ⎝⎠ Name _______________________________________ Thursday February 7, 2013 5. There are three boxes. Box X contains 3 red marbles and 7 blue marbles. Another box Y contains 6 red marbles and 4 blue marbles. The third...
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This note was uploaded on 01/25/2014 for the course MATH 511 taught by Professor Sumner during the Spring '13 term at South Carolina.

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