7. Let A, B, and C be three events. Write out expressions for the following events...

Question

Question

Answer 1

Answer #1

a)

A occurs but neither B nor C occurs =A n(B u C)^c

b) A and B occur but not C =(A n B) n C^c

c) A or B occurs but not C =(A U B)n C^c

d)None of A , B and C occurs =(A U B U C)^c

e)

A.B or C occurs =A u B u C

Answer 2

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