SOLUTION: There are 6 white balls, 3 black balls and 9 blue balls in a basket.If a ball is picked and random without replacement, what is the probability that the second picked ball is a blu

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Question 145951: There are 6 white balls, 3 black balls and 9 blue balls in a basket.If a ball is picked and random without replacement, what is the probability that the second picked ball is a blue ball?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
There are 6 white balls, 3 black balls and 9 blue balls in a basket.If a ball is picked and random without replacement, what is the probability that the second picked ball is a blue ball?
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P(blue on 2nd) = P(blue | blue) + P(blue |not blue)
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= 9/18*8/17 + 9/18*9/17 = 1/2
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Cheers,
Stan H.