CBSE Class 9 Mathematics Probability Set D

Read and download the CBSE Class 9 Mathematics Probability Set D for the 2025-26 academic session. We have provided comprehensive Class 9 Mathematics school assignments that have important solved questions and answers for Chapter 15 Probability. These resources have been carefuly prepared by expert teachers as per the latest NCERT, CBSE, and KVS syllabus guidelines.

Solved Assignment for Class 9 Mathematics Chapter 15 Probability

Practicing these Class 9 Mathematics problems daily is must to improve your conceptual understanding and score better marks in school examinations. These printable assignments are a perfect assessment tool for Chapter 15 Probability, covering both basic and advanced level questions to help you get more marks in exams.

Chapter 15 Probability Class 9 Solved Questions and Answers

 

Question : In a cricket math, a batswoman hits a boundary 6 times out of 30 balls she plays.
Find the probability that she did not hit a boundary.
Answer:  Number of times the batswoman hits a boundary = 6
Total number of balls played = 30
Number of times that the batswoman does not hit a boundary = 30 − 6 = 24
 
D
 
 
Question : 1500 families with 2 children were selected randomly, and the following data were recorded:
D-
Compute the probability of a family, chosen at random, having
(i) 2 girls (ii) 1 girl (iii) No girl 
Also check whether the sum of these probabilities is 1.
Answer:  Total number of families = 475 + 814 + 211
= 1500
D-1
 
 
Question :  In a Particular section of class IX, 40 students were asked about the months of their  birth and the following graph was prepared for the data so obtained:
D-2
Find the probability that a student of the class was born in August.
Answer:  Number of student s born in the month of August = 6
Total number of students = 40
D-3
 
 
Question : Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes:
D-4
If the three coins are simultaneously tossed again, compute the probability of 2 heads coming up.
Answer:  Number of times 2 heads come up = 72
Total number of times the coins were tossed = 200
 
D-5
 
 
 
 
Question : An organization selected 2400 families at random and surveyed them to determine a relationship between income level and the number of vehicles in a family. The information gathered is listed in the table below:
 D-6
Suppose a family is chosen, find the probability that the family chosen is
(i) earning Rs 10000 − 13000 per month and owning exactly 2 vehicles.
(ii) earning Rs 16000 or more per month and owning exactly 1 vehicle.
(iii) earning less than Rs 7000 per month and does not own any vehicle.
(iv) earning Rs 13000 − 16000 per month and owning more than 2 vehicles.
(v) owning not more than 1 vehicle.
Answer:  Number of total families surveyed = 10 + 160 + 25 + 0 + 0 + 305 + 27 + 2 + 1 + 535 + 29 + 1 + 2 + 469 + 59 + 25 + 1 + 579 + 82 + 88 = 2400
 
D-7
 
 
More Assignments for Class 9 Mathematics
CBSE Class 9 Mathematics Collection of Assignments

CBSE Class 9 Mathematics Chapter 15 Probability Assignment

Access the latest Chapter 15 Probability assignments designed as per the current CBSE syllabus for Class 9. We have included all question types, including MCQs, short answer questions, and long-form problems relating to Chapter 15 Probability. You can easily download these assignments in PDF format for free. Our expert teachers have carefully looked at previous year exam patterns and have made sure that these questions help you prepare properly for your upcoming school tests.

Benefits of solving Assignments for Chapter 15 Probability

Practicing these Class 9 Mathematics assignments has many advantages for you:

  • Better Exam Scores: Regular practice will help you to understand Chapter 15 Probability properly and  you will be able to answer exam questions correctly.
  • Latest Exam Pattern: All questions are aligned as per the latest CBSE sample papers and marking schemes.
  • Huge Variety of Questions: These Chapter 15 Probability sets include Case Studies, objective questions, and various descriptive problems with answers.
  • Time Management: Solving these Chapter 15 Probability test papers daily will improve your speed and accuracy.

How to solve Mathematics Chapter 15 Probability Assignments effectively?

  1. Read the Chapter First: Start with the NCERT book for Class 9 Mathematics before attempting the assignment.
  2. Self-Assessment: Try solving the Chapter 15 Probability questions by yourself and then check the solutions provided by us.
  3. Use Supporting Material: Refer to our Revision Notes and Class 9 worksheets if you get stuck on any topic.
  4. Track Mistakes: Maintain a notebook for tricky concepts and revise them using our online MCQ tests.

Best Practices for Class 9 Mathematics Preparation

For the best results, solve one assignment for Chapter 15 Probability on daily basis. Using a timer while practicing will further improve your problem-solving skills and prepare you for the actual CBSE exam.

Where can I download the latest CBSE Class 9 Mathematics Chapter Chapter 15 Probability assignments?

You can download free PDF assignments for Class 9 Mathematics Chapter Chapter 15 Probability from StudiesToday.com. These practice sheets have been updated for the 2025-26 session covering all concepts from latest NCERT textbook.

Do these Mathematics Chapter Chapter 15 Probability assignments include solved questions?

Yes, our teachers have given solutions for all questions in the Class 9 Mathematics Chapter Chapter 15 Probability assignments. This will help you to understand step-by-step methodology to get full marks in school tests and exams.

Are the assignments for Class 9 Mathematics Chapter Chapter 15 Probability based on the 2026 exam pattern?

Yes. These assignments are designed as per the latest CBSE syllabus for 2026. We have included huge variety of question formats such as MCQs, Case-study based questions and important diagram-based problems found in Chapter Chapter 15 Probability.

How can practicing Chapter Chapter 15 Probability assignments help in Mathematics preparation?

Practicing topicw wise assignments will help Class 9 students understand every sub-topic of Chapter Chapter 15 Probability. Daily practice will improve speed, accuracy and answering competency-based questions.

Can I download Mathematics Chapter Chapter 15 Probability assignments for free on mobile?

Yes, all printable assignments for Class 9 Mathematics Chapter Chapter 15 Probability are available for free download in mobile-friendly PDF format.