GWD18-32的一道概率题，蹊跷。

What is the probability that event E
or event F or both will occur?

(1)     The
probability that event E will occur is 0.6.

(2)     The
probability that event F will occur is 0.4.

A. Statement (1) ALONE is
sufficient, but statement (2) alone is not sufficient.

B. Statement (2) ALONE is
sufficient, but statement (1) alone is not sufficient.

C. BOTH statements TOGETHER
are sufficient, but NEITHER statement ALONE is sufficient.

D. EACH statement ALONE is
sufficient.

E. Statements (1) and (2) TOGETHER
are NOT sufficient.

能帮忙解释一下吗，谢谢。

它不是问发生E,发生F,或两者都发生的概率么

不是1-(1-0.6)(1-0.4)么~~