Q2: The probabilities that a satellite launching rocket will explode during lift-off or have its guidance system fail in the flight are 0.0002 and 0.0005, respectively. Assuming independence find the probabilities that such a rocket will
a) not explode during lift-off;
b) explode during lift-off or have its guidance system fail in flight;
c) neither explode during lift-off nor have its guidance system fail in flight.
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