Question #369

Consider A, B and C to be an events. What is the sense of the following equations:

a) ABC = A;

b) A+B+C = A?

a) ABC = A;

b) A+B+C = A?

Expert's answer

a) ABC = A - The simultaneous occurrence of the events A, B and C is equivalent to the event A.

b) A+B+C = A - The occurrence of at least one of the events A, B or C is equivalent to the event A.

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