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Assume that event A occurs with probability .3 and event B occurs with probability .4. Assume that A and B are disjoint events. a) What

Assume that event A occurs with probability .3 and event B occurs with probability .4. Assume that A and B are disjoint events. a) What is the probability that either event occurs (A or B)? Explain. b) What is the probability that both events occur (A and B)? Explain.

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