Event A has probability 0.4 event B has probability 0.5 If A and B are disjoint then the probability that both events occur is?

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P(A and B)=P(A)*P(B) if they are disjoint, so P(A and B)=0.4*0.5=0.2

Actually this is incorrect. If two events are disjoint, they cannot occur at the same time. For example, if you flip a coin, you cannot get heads AND tails. Since A and B are disjoint, P(A and B) = 0

If A and B were independent, then P(A and B) = 0.4*0.5=0.2. For example, the chances you throw a dice and it lands on 1 AND the chances you flip a coin and it land on heads. These events are independent...the outcome of one event does not affect the outcome of the other.

First answer by ID2205095121. Last edit by ZcoreCA. Contributor trust: 0 [recommend contributor]. Question popularity: 1 [recommend question]

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