# Class 11 Math Chapter 14 MCQ Question Answer NCERT Solution

NCERT Class 11 Math Probability Chapter 14 MCQ Question Answer for Preparation of Exams. Here we Provide Class 11 Math Question Answer, Important Questions, MCQ for Various State Boards Students like CBSE, Haryana, uttar pradesh, mp and other state students.

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NCERT Class 11 Math Chapter 14 Probability MCQ Question Answer Solution.

## Probability Class 11 Math Chapter 14 MCQ Question Answer

1. If A and B are any two events, then which of the following is not true ?
(A) P(A ∩ B) ≤ P(A ∪ B)
(B) P(A ∩ B) ≤ P(A)
(C) P(A) ≤ P(A ∩ B)
(D) P(B) ≤ P(A ∪ B)

Ans. (C) P(A) ≤ P(A ∩ B)

2. If A and B are two events such that P(A) = ½ , P(B) = 7/10  and P(A ∩ B) = 3/5 , then find P(A ∪ B).
(A) 7/10
(B) 9/10
(C) ¾
(D) ½

Ans. (B) 9/10

3. If 2/11  is the probability of an event then the probability of the event “not A” is
(A) 0
(B) 2/11
(C) 9/11
(D) -2/11

Ans. (C) 9/11

4. If a coin is tossed thrice, then the probability of getting 1 Tail and 2 Heads is
(A) ½
(B) ¼
(C) 1/8
(D) 3/8

Ans. (D) 3/8

5. Given p(A) = 3/5 and p(B) = 1/5 .Find p( A or B), if A and B are mutually exclusive events:
(A) 3/25
(B) 2/5
(C) 4/5
(D) 1/5

Ans. (C) 4/5

6. Three fair coins are tossed. The probability of getting exactly one head is :
(A) ½
(B) 1/8
(C) 3/8
(D) 1

Ans. (C) 3/8

7. A bag contains 5 white, 4 black and 6 red balls. A ball is drawn at random. The probability that the ball drawn is not white is :
(A) 1/3
(B) 4/15
(C) 2/5
(D) 2/3

Ans. (D) 2/3

8. Which of the following cannot be the probability of any event?
(A) 0
(B) 1
(C) 50%
(D) -1

Ans. (D) -1

9. What will be the number of outcomes if a fair coin is rolled 4 times?
(A) 4
(B) 8
(C) 12
(D) 16