Interview Questions

A submarine has two torpedoes with 1/3 probability of hitting a target. Both were fired on the same target.  What is the probability that at least one of the torpedoes will hit the target?

Answer:
2/3 x 2/3 = 4/9 is probability of neither hitting 
thus the probability of one hitting is 1 - 4/9 = 5/9
 

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