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1. Assume that event A occurs with probability 0.4 and event B occurs with probability 0.5. Assume that A and B are disjoint events. The probability that both events occur (A and B) is
A. 1.
B. 0.
C. 0.30.
D. 0.70.
2. Assume that event A occurs with probability 0.4 and event B occurs with probability 0.5. Assume that A and B are disjoint events. The probability that either event occurs (A or B) is
A. 0.90.
B. 0.70.
C. 1.
D. 0.
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