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OpenStudy (anonymous):
a bag holds 8 colored balls, 5 that are gold. ramona picks a gold one from the bag and keeps it. carlos then picks a ball from the bag. what is the probability that he will pick a gold ball?
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OpenStudy (anonymous):
4/7
OpenStudy (anonymous):
4/7
OpenStudy (anonymous):
is simple, ramona having taken the first ball, and are now only 7 of which, we know that the 5 gold, now there are only 4, so divide, favorable cases where possible, and you have 4 (of gold ) / 7 (total areas)
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