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The probability that a heat-seeking torpedo will hit its target is 0.4. If the first torpedo...

The probability that a heat-seeking torpedo will hit its target is 0.4. If the first torpedo hits its target, the probability that the second torpedo will hit the target increases to 0.9 because of the extra heat. If two torpedoes are fired at a target, determine the probability that: a) neither hits its target. b) both hit the target.

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