Mathematics, 19.07.2019 16:00, trea56

The probability of event a is 0.48, the probability of event a and b is 0.21, and the probability of events a or b is 0.89. what is the probability of event b? 0.09 0.20 0.27 0.62

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The probability of event a is 0.48, the probability of event a and b is 0.21, and the probability of...