Which of the Following Statements Is(are) Always True?
A)-1 $\le$ P(E_i) $\le$

Multiple Choice

Which of the following statements is(are) always true?

A) -1 $\le$ P(E_i) $\le$ 1
B) P(A) = 1 - P(A^c)
C) P(A) + P(B) = 1
D) both P(A) = 1 - P(A^c) and P(A) + P(B) = 1