CBSE Class 12 Mathematics Probability Worksheet Set 03

Download Class 12 Mathematics Worksheets for Chapter 13 Probability

Access printable practice worksheets for Chapter 13 Probability designed to align with the 2026-27 academic syllabus for Class 12 Mathematics. These structured exercises help students evaluate their conceptual understanding and improve exam readiness.

Access Chapter 13 Probability Questions and Exercises

View or download the dedicated Chapter 13 Probability practice resource below. Engaging with these objective and subjective questions daily ensures continuous academic progress and mastery of the 2026-27 curriculum.

PROBABILITY
 
1) In a class, having 60% boys, 5% of boys and 10% of girls have an IQ of more than 150.A student is selected at random and found to have an IQ of more than 150. Find the probability that the selected student is a boy.
 
2) A pair of dice is thrown 6 times. Getting a total of 7 on the two dice is considered a success. Find the Probability of getting (i) at least 5 successes (ii) exactly 5 successes.
 
3) A pair of dice is thrown 4 times . If getting a doublet is considered a success, find the probability distribution of number of successes.
 
4) Two cards are drawn simultaneously from a well packed deck of 52 cards . Find the mean and standard deviation of the number of the kings
 
5) Three Bags contain balls as shown in the table below

CBSE Class 12 Mathematics Probability Worksheet Set C 1

A bag is chosen at random and two balls are drawn from it .They Happen to be white and red. What is probability that they came from the III bag.
 
6) On a multiple choice examinations with three possible answers ( out of which only one is correct) for each of the five questions, what is the probability that a candidate should get four or more correct answers just by guessing.
 
7) Suppose that 5% of men and 0.25% of women have grey hair , A Grey Haired person is selected at random . What is the probability of this person being a male. Assume that there are equal number of males and Females.
 
8) A random Variables X has the following probability distribution

CBSE Class 12 Mathematics Probability Worksheet Set C 2

 Find (i) k (ii) P(X<4) (iii)P(X ≤2) (iv) P ( 0
 
9) Bag 1 contains 3 red and 4 black balls and Bag 2 Contains 4 red and 5 Black balls. Two balls are transferred at random from Bag1 to Bag2. The ball so drawn is red in colour.Find the probability that the transferred balls were both black.
 
10) In an examination , an examinee either guesses or copies or knows the answer of multiple choice question with 4 choice. The probability that he makes a guess is 1/3 and the probability he copies is 1/6.Find the probability that his answer is correct, given that he copied it is 1/8. Find the probability that he knew the answer to the question, given that he correctly answered it.
 
11) By Examining the chest X ray, probability that T.B is detected when a person is actually suffering is 0.99 the probability that the doctor diagnose incorrectly that a person has TB on the basis of Xray is 0.001. In a certain city 1 in 1000 person suffers from TB. A person selected at random is diagnosed to have TB . What is the chance that he actually has TB.
 
12) In a group of 50 scouts in a camp, 30 are well trained in first aid, remaining are well trained in hospitality and not first aid. 2 scouts are selected at random.Find the probability distribution of the no. of selected scouts who are well trained in first aid.Find the mean of the distribution.Write one more value which is expected from a scout.
 
13) In a group of 30 scientists working on an experiment,20 never commit error in their wok and report results elaborately.Two scientists are selected at random .Find the probability distribution of no. of selected scientists who never commit error in work.Also find the mean of the distribution.What values are described in this question.
 
14) It is known that 10% of certain articles manufactured are defective. What is the probability that in random sample of 12 such articles , 9 are defective?
 
15) The probability of a shooter hitting a target is ¾ . How many minimum number of times must he /she fire so that the probability of hitting the target at least once is more than 0.99?

 

Please click on below link to download CBSE Class 12 Mathematics Probability Worksheet Set C

Free study material for Mathematics

Chapter 13 Probability Practice Sheet and Solutions for Class 12 Mathematics

Chapter Practice Questions for Class 12 Mathematics

Access structured practice worksheets for Chapter 13 Probability designed in alignment with the latest CBSE curriculum for Class 12 Mathematics. These printable problem sets help students build accuracy and prepare effectively for school tests.

Expert Practice Material for Class 12 Mathematics

Each worksheet is structured around standard CBSE textbooks, allowing students to check their working steps and correct mistakes early in their revision.

Complete Your Chapter Revision

Explore our broader library of printable assignments, chapter notes, and mock tests designed to support continuous revision and secure higher marks in CBSE assessments.

FAQs

Where can I download the latest PDF for CBSE Class 12 Mathematics Probability Worksheet Set 03?

You can download the teacher-verified PDF for CBSE Class 12 Mathematics Probability Worksheet Set 03 from StudiesToday.com. These practice sheets for Class 12 Mathematics are designed as per the latest CBSE academic session.

Are these Mathematics Class 12 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 12 Mathematics Probability Worksheet Set 03 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 12.

Do you provide solved answers for CBSE Class 12 Mathematics Probability Worksheet Set 03?

Yes, we have provided detailed solutions for CBSE Class 12 Mathematics Probability Worksheet Set 03 to help Class 12 and follow the official CBSE marking scheme.

How does solving CBSE Class 12 Mathematics Probability Worksheet Set 03 help in exam preparation?

Daily practice with these Mathematics worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 12 students get more marks in CBSE exams.

Is there any charge for the Class 12 Mathematics practice test papers?

All our Class 12 Mathematics practice test papers and worksheets are available for free download in mobile-friendly PDF format. You can access CBSE Class 12 Mathematics Probability Worksheet Set 03 without any registration.