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OpenStudy (anonymous):
there are five guns that when properly aimed and fired have respective probabilities of hitting the target as follows , 0.5,0.6,0.7,0.8,0.9 . one of the gun is chosen randomly,aimed and fired. what is the PROBABILITY that the target is hit ?
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OpenStudy (inkyvoyd):
take the average of the probabilities of all the guns. That is the probability
OpenStudy (experimentx):
if it's average then it would be (1/5*0.5+...)/5
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