Class 12 Mathematics - Chapter 13: Probability MCQ Questions

24 Questions 48 Minutes

Progress: 0 / 24

Your Class 12 Mathematics Study Path

A (frac { 2 }{5})

B (frac { 1 }{5})

C (frac { 1 }{2})

D (frac { 4 }{5})

A P (A) = P (B).

B A âˆ© B = Ã¸

D A âŠ‚ B but A â‰ B

A (frac { 3 }{4})

B (frac { 1 }{5})

C (frac { 2 }{5})

D (frac { 3 }{10})

C (frac { 2 }{3})

D (frac { 1 }{2})

A P (B/A) = P (B).

B P (B/A) > P (B)

C P (A âˆ© B) < P (A).P(B)

D P (B/A) < P (B)

A (sqrt { E(X)^2-[E(X)]^2})

B E(XÂ²) – [E(X)]Â²

C E(XÂ²) + E(X)

A (frac { 2 }{13})

B (frac { 1 }{13})

C (frac { 5 }{13})

D (frac { 37 }{221})

A (frac { 2 }{3})

B (frac { 1 }{3})

C (frac { 1 }{6})

D (frac { 1 }{2})

A (frac { 6 }{7})

B (frac { 3 }{8})

C (frac { 3 }{10})

D (frac { 1 }{10})

A (frac { 2 }{5})

B (frac { 1 }{4})

C (frac { 1 }{5})

D (frac { 3 }{8})

A mutually exclusive and independent.

B independent and equally likely

C independent but not equally likely

D equally likely but not independent

A (frac { 1 }{36})

B (frac { 1 }{12})

C (frac { 1 }{3})

A P (A^c) – P (B).

B P (A^c) – P (B^c)

C P (A^c) + P (B^c)

D P (A) – P (B^c)

B not defined

C (frac { 1 }{2})

A (frac { 4 }{15})

B (frac { 8 }{15})

C (frac { 1 }{15})

D (frac { 2 }{5})

A P (A/B) = 0

B P (B/A) = 0

C P (A/B) = 1

D P (B/A) = 1

A A’ and B’ are independent.

B A’ and B are independent

C A and B’ are independent

D A and B are mutually exclusive

A P (A) + P (B) = 1.

B P (A) = P (B)

C P (A’B’) = [1 – P(A)] [1 – P(B)]

D A and B are mutually exclusive

A (frac { 12 }{55})

B (frac { 6 }{55})

C (frac { 7 }{55})

D (frac { 14 }{45})

A None of these.

B P (A/B) â‰¥ P (A)

C P (A/B) < P (A)

D P (A / B) = (frac { p(B) }{p(A)})

Related Student Tools

Convert marks into grade bands with transparent thresholds.

Calculate exam or subject-wise marks percentage.

Calculate percentage from obtained marks and total marks.

Keep learning

Discover More on SaralStudy

Fresh educational articles and updates.

Most-read articles from SaralStudy.

Fast access to frequently used study resources.

Recently viewed articles based on SaralStudy activity.

Class 12 Mathematics - Chapter 13: Probability MCQ Questions

Your Class 12 Mathematics Study Path

Practice Complete!

Related Student Tools

Discover More on SaralStudy

Class 12 Mathematics - Chapter 13: Probability MCQ Questions

Your Class 12 Mathematics Study Path

Probability that A speaks truth is (frac { 4 }{5}). A coin is tossed. A reports that a head appears. The probability that actually there was head is:

Then E(X) is equal to

If A and B are events such that P (A/B) = P(B/A), then

If now a ball is drawn at random from the bag, then the probability that this drawn ball is red is

A die is thrown once, then the probability of getting a number greater than 3 is :

If P (A/B) > P (A), then which of the following is correct?

Let â€˜Xâ€™ be a discrete random variable assuming values x1, x2, …………… , xn with probabilities p1, p2, …………. , pn respectively. Then variance of â€˜Xâ€™ is given by

Suppose that two cards are drawn at random from a deck of cards. Let X be the number of aces obtained. What is the value of E (X)?

If it is given that the events A and B are such that P (A) = (frac { 1 }{4}), P (A/B) = (frac { 1 }{2}) and P(B/A) = (frac { 2 }{3}). Then P (B) is:

If A and B are two events such that P(A) = 0.2, P(B) = 0.4 and P(AâˆªB) = 0.5, then value of P(A/B) is?

Let A and B be two events such that P(A) = 0.6, P(B) = 0.2 and P(A/B) = 0.5. Then P(A’/B’) equals

Three numbers are chosen at random with-out replacement from {1, 2, 3, ….. 8}. The probability that their minimum is 3, given that their maximum is 6 is

Let A and B be two events such that P((overline{mathbf{A} cup mathbf{B}})) = (frac { 1 }{6}) P(Aâˆ©B) = (frac { 1 }{4}) and P((bar { A})) = (frac { 1 }{4}), where (bar { A})stands for the complement of the event A. Then the events A and B are

Let A and B be two events. If P(A) = 0.2, P(B) = 0.4, P(A âˆª B) = 0.6, then P(A/B) is equal to:

The probability of obtaining an even prime number on each die when a pair of dice is rolled is

Let A, B, C be pairwise independent events with P (C) > 0 and P (Aâˆ©Bâˆ©C) = 0. Then P (Acâˆ©Bc /C) is

If P(A) = (frac { 1 }{2}), P(B) = 0, thenP (A/B) is

An urn contains 6 balls of which two are red and four are black. Two balls are drawn at random. Probability that they are of the different colours is:

If A and B are two events such that P (A) â‰ 0 and P (B/A) = 1, then

P (A) + P (B) – P (A and B) = P (A), then:

If A and B are independent events such that 0 < P(A) < 1 and 0 < P(B) < 1, then which of the following is not correct?

Two events A and B are said to be independent if:

If two different numbers are taken from set (0, 1, 2, …… , 10}, then the probability that their sum as well as absolute difference are both multiples of 4, is

If A and B are two events such that A âŠ‚ B and P (B) â‰ 0, then which of the following is correct

Practice Complete!

Related Student Tools

Grade Calculator

Marks Percentage Calculator

Percentage Calculator

Students Also Read

Discover More on SaralStudy

Latest Blogs

Popular Blogs

Quick & Popular Links

Quick Links

Popular Study Links

What Students Are Viewing

Let â€˜Xâ€™ be a discrete random variable assuming values x₁, x₂, …………… , x_n with probabilities p₁, p₂, …………. , p_n respectively. Then variance of â€˜Xâ€™ is given by

Let A, B, C be pairwise independent events with P (C) > 0 and P (Aâˆ©Bâˆ©C) = 0. Then P (A^câˆ©B^c /C) is