SOLUTION: a box has pools of thread. There are 4 red, 3 yell and 2 white. Dave pics a spool and keeps it. his spool is not white. Then Sue pics a spool and keeps it. Her spool is not whit

Question 858883: a box has pools of thread. There are 4 red, 3 yell and 2 white. Dave pics a spool and keeps it. his spool is not white. Then Sue pics a spool and keeps it. Her spool is not white. Its now teds turn to pick a spool from the box. What is the probability that his will be white.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a box has pools of thread. There are 4 red, 3 yell and 2 white. Dave pics a spool and keeps it. his spool is not white. Then Sue pics a spool and keeps it. Her spool is not white. Its now teds turn to pick a spool from the box. What is the probability that his will be white.
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Ans: 2/7
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Cheers,
Stan H.
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