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OpenStudy (hysenberg):
probability question: a bag contains 6 red,4 blue and 5 black balls.if three balls are drawn on succession at random and three different colored balls are obtained determine the probability that the second drawing is either red or blue
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OpenStudy (thomas5267):
Draw a probability tree first.
OpenStudy (hysenberg):
|dw:1424608020000:dw| so i can draw 3 different colored balls in \[\frac{ 6C_1*4C_1*5C_1 }{ 15C_3 }\]ways right?
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