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NCERT Solutions class 9 Mathematics 14. Statistics Exercise 14.4

Detailed NCERT Solutions for 9 Mathematics 14. Statistics to simplify learning. Understand chapters clearly and practice with free solutions for better results.

NCERT Solutions class 9 Mathematics 14. Statistics Exercise 14.4

NCERT Solutions class 9 Mathematics 14. Statistics Exercise 14.4

Detailed NCERT Solutions for 9 Mathematics 14. Statistics to simplify learning. Understand chapters clearly and practice with free solutions for better results.

9 Mathematics Chapter 14. Statistics - Exercise 14.4

Preparing for exams becomes easier with Exercise 14.4. Whether you are studying for board exams or mid-term exams, 9 Mathematics Chapter 14. Statistics solutions provide quick revising points, well-structured answers, and additional practice material to help you score better.

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14. Statistics

Exercise 14.4


Important-Questions

 

Q1.  Find the value of x if median of Data is 49.

        32, 42, 45, x, x + 2, 53, 54, 56

Q2.  Find the mode of the following data:
        5, 7, 6, 5, 9, 8, 6, 7, 11, 10, 5, 7, 6, 8, 6, 9, 10.

Q3.  If the arithmetic mean of 25, 30, 32, x, 43 is 34, then find the value of x.

Q4. The points scored by a basket-ball team in a series of matches are as follows:
       17, 2, 7, 27, 25, 5, 14, 18 , 10, 24, 10, 8, 7, 10
        Find mean, median and mode for the data.

Q5. Find  the Mode of following data;

2, 3, 4, 5, 0, 1, 3, 3, 4, 3 

Q6. The followings data are written in ascending orders. If the median of data is 14.5then find the value of x.

      11, 12, 13, 7x, 7x + 1, 16, 16, 18, 20

Q7.  Find the median of 34, 32, x, x-1, 19, 15, 11 where x is the mean of data
10, 20, 30, 40, 50.

Q8.  If the mean of 10, 12, 18, 11, p and 19 is 15 then find the value of p and
also find the median.

        

      

Q10. What is the range for the given data 
         31, 32.5, 20.3, 27.9, 28, 19.7, 31.7.

Q11. Find the mode for the data given below 
         14, 25, 14, 28, 18, 17, 14, 23, 22, 14, 18.

Q12. If the mean of 6, 8, 5, 7, x and 4 is 7 then find the value of x.

Q13.  Find the mean for 
          4, 3, 7, 0, 0, 6, 8.

Q14.  Find the mode for the following :-
          7, 9, 12, 13, 7, 12, 15, 7, 12, 7, 25, 18, 7.

Q15.  If means of 1 x , 2 x is 6 and mean of 1 x , 2 x and 3 x is 7 then find 3 x .

Q16.  If 3 is the mean for x, 3, 4, 5 then find the value of x.

Q17.  What is the range of 40, 42, 80, 69, 56, 47?

Q18.  The class marks are given below 
          47, 52, 57, 62, 67, 72, 77, 82
          What is the class size?

Q19.  Find the median :-
          36, 39, 42, 48, 52, 68, 69, 71, 72, 78.

Q20.  One student has scored the marks in five subject as below
          70, 64, 56, 54, 51.
          find the mean.

 

 

 

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📘 Why Exercise 14.4 are Important?

Exercise 14.4 are created by experts to give step-by-step explanations. Around 60–70% of exam questions are based on NCERT concepts. Our 9 Mathematics Chapter 14. Statistics solutions help you understand the core concepts and practice effectively.

✍️ Quick Revising Points as Notes in Page-1

Revision is the key to exam success. Our notes for 9 Mathematics highlight important formulas, key definitions, and exam-ready points from Chapter 14. Statistics. These quick revision notes make last-minute preparation easy.

📚 NCERT Exercise Solutions

Every NCERT chapter ends with exercises, and solving them is crucial. Our Exercise 14.4 include complete solutions for 9 Mathematics Chapter 14. Statistics exercises. With step-by-step answers, you gain clarity and confidence to attempt similar exam questions.

📝 Additional Important Questions & Answers

To boost your preparation, we also provide additional important questions with answers. These are prepared from previous year board papers, sample papers, and important concepts of Chapter 14. Statistics. Practicing these ensures you are well-prepared for both board and mid-term exams.

🎯 Useful for Board & Mid-Term Exams

Our Exercise 14.4 are useful for both board exams and mid-term exams. For 9 Mathematics, we provide notes, exercises, and important Q&A so that you can revise smartly and write perfect answers in exams.

🌟 Final Words

In short, Exercise 14.4 for 9 Mathematics Chapter 14. Statistics are a complete study package. With quick revising points, NCERT exercises, and additional important questions, you can prepare effectively for exams. Make these solutions your study companion and excel in your academic journey.

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