14. Statistics Mathematics Exercise - 14.4 class 9 Maths in English - CBSE Study
NCERT Solutions for Class 9 Mathematics are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 14. Statistics with detailed explanations and step-by-step answers for better exam preparation. Each Exercise 14.4 is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 9 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Mathematics.
Class 9 English Medium Mathematics All Chapters:
14. Statistics
4. 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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