SOLUTION: a bag contains 3 red &7blue balls two balls are drawn at random without replacement if second selection is given to be red find probability that first is also red

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Question 565331: a bag contains 3 red &7blue balls two balls are drawn at random without replacement if second selection is given to be red find probability that first is also red
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a bag contains 3 red &7blue balls two balls are drawn at random without replacement if second selection is given to be red find probability that first is also red
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If 2nd is red, when there is no replacement after 1st,
probability that 1st is red is 2/10 = 1/5
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Cheers,
Stan H.