Mathematics for IGCSE & O level - Probability (Section 9)

1
Which of the following events are independent?
Answer
A
C
D
2
If the probability of an event is 1/4, what is the probability of the event *not* occurring?
Answer
(C)
3/4
3
Which of the following best defines 'mutually exclusive events'?
Answer
(A)
Events that cannot occur simultaneously.
4
If the probability of winning a game is 0.35, what is the probability of losing the game?
Answer
(B)
0.65