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anonymous
 one year ago
Find the probability of picking a blue marble and a yellow marble when 2 marbles are picked (without replacement)from a bag containing 4 blue and 5 yellow marbles.
anonymous
 one year ago
Find the probability of picking a blue marble and a yellow marble when 2 marbles are picked (without replacement)from a bag containing 4 blue and 5 yellow marbles.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how am i suppose to do that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you know how to write a proportion? It's two fractions equal to each other. If you need more help, go on Kahn Academy

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.14 blue + 5 yellow = 9 total the probability of picking a blue marble on the first draw is (# of blue)/(# total) = 4/9

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1no replacements are made, so after the first draw we have 91 = 8 marbles left over. There are still 5 yellow marbles the probability of picking yellow on the second draw is (# of yellow)/(# of marbles left) = 5/8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what about the yellow

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1multiply the two fractions to get the answer
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