The probabilities of the events A and B are 0.20 and 0.30, respectively. The probability that both A and B occur is 0.15. What is the probability of either A or B occurring

35% probability of either A or B occurring

Step-by-step explanation:

We solve this problem building the Venn's diagram of these probabilities.

We have two events, A and B.

We have that:

In which a is the probability that A occurs but B does not and is the probability that both A and B occur.

By the same logic, we have that:

The probability that both A and B occur is 0.15.

This means that

The probabilities of the events A and B are 0.20 and 0.30, respectively.

.

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What is the probability of either A or B occurring?

35% probability of either A or B occurring

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

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