Q1. If P(E) = 0.05, then find the probability of ‘not E’

Ans: 0.95

Q2. Choose the correct answer:

If P(E) denotes the probability of an event E then
(a) P(E) < 0
(b) P(E) > 1
(c) 0 ≤ P(E) ≤ 1
(d) −1 ≤ P(E) ≤ 1

Ans: c

Q3. Fill in the blank:

Q4. What is the probability of a sure event?

Ans: 1

Q5. A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is red?

Ans: 3/8

Q6. If the probability of winning a game is 9/11, what is the probability of losing?

Ans: 2/11