21-10-2016
Mathematics

contestada

four ordinary quarters and have a quarter with two heads are placed in a hat. one quarter selected at random and tossed twice. if the outcome is "HH", what is the probability that's a fake quater was selected

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Bakerboyt Bakerboyt

21-10-2016

2:4 is the probability. It is more likely to receive a ordinary quarter, but the probability of the two headed quarter is still great enough to get it.

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naqiraza944 naqiraza944

07-04-2020

Answer:

Pr(fake quarter selected)=(1/2)(1/2)=1/4=0.25

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