Which of the Following Is NOT One of the Basic

Multiple Choice

Which of the following is NOT one of the basic requirements of probability?

A) for each experimental outcome E_i, then 0 < P(E_i) < 1 for all i
B) P(A) = P(A^') - 1
C) if there are k experimental outcomes, then P(E₁) + P(E₂) + … + P(E_k) = 1
D) both b and c
E) all of the above