## Class 9 Maths Case Study Questions Chapter 14 Statistics

Case study Questions in Class 9 Mathematics Chapter 14 are very important to solve for your exam. Class 9 Maths Chapter 14 Case Study Questions have been prepared for the latest exam pattern. You can check your knowledge by solving Class 9 Maths Case Study Questions Chapter 14 Statistics

In CBSE Class 9 Maths Paper, Students will have to answer some questions based on Assertion and Reason. There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.

# Statistics Case Study Questions With Answers

Here, we have provided case-based/passage-based questions for Class 9 Maths Chapter 14 Statistics

Case Study/Passage-Based Questions

Case Study 1: The Class teacher of Class X prepares the result analysis of a student. She compares the marks of a student obtained in Class IX (2018-19) and Class X (2019-20) using the double bar graph as shown below:

(i) In which subject has the performance improved the most?
(a) Maths (b) Social Science
(c) Science (d) English

Ans: (a) Maths

(ii) In which subject has the performance deteriorated?
(a) Maths (b) Social Science
(c) Science (d) English

Ans: (d) English

(iii) In which subject is the performance at par?
(a) Hindi (b) Maths
(c) Science (d) English

Ans: (a) Hindi

(iv) What is the difference in Maths Subject?
(a) 5 (b) 30 (c) 0 (d) 10

Ans: (b)30

(v) What is the percentage of marks obtained by a student in Class X (2019-20)?
(a) 60% (b) 55%
(c) 54% (d) 65%

Ans: (b) 55%

Case Study 2: A Mathematics teacher asks students to collect marks of Mathematics in Half yearly exams. She instructed all the students to prepare a frequency distribution table using the data collected. Ram collected the following marks (out of 50) obtained in Mathematics by 60 students of Class IX
21, 10, 30, 22, 33, 5, 37, 12, 25, 42, 15, 39, 26, 32, 18, 27, 28, 19, 29, 35, 31, 24, 36, 18, 20, 38, 22, 44, 16, 24, 10, 27, 39, 28, 49, 29, 32, 23, 31, 21, 34, 22, 23, 36, 24, 36, 33, 47, 48, 50, 39, 20, 7, 16, 36, 45, 47, 30, 22, 17.

(i) How many students scored more than 20 but less than 30?
(a) 20 (b) 21
(c) 22 (d) 23

(ii) How many students scored less than 20 marks?
(a) 10 (b) 11
(c) 12 (d) 14

(iii) How many students scored more than 60% marks?
(a) 20 (b) 25
(c) 26 (d) 27

(iv) What is the class size of the classes?
(a) 10 (b) 5
(c) 15 (d) 20

(v) What is the class mark of the class interval 30 – 40?
(a) 30 (b) 35
(c) 40 (d) 70

Case Study 3:

Anil is a Mathematics teacher in Hyderabad. After Periodic test 3, he asks students to collect the Mathematics marks of all the students of Class IX- A, B, and C. A student is able to collect marks from some students. Rekha scored least mark 6 in the class and Ram scored the highest mark 59 in the class. He prepares the frequency distribution table using the collected marks and draws Histogram using the table as shown in the adjoining figure.

(a) What is the width of the class?
(i) 10 (ii) 15 (iii) 5 (iv) none of these

(b) What is the total number of students in the Histogram?
(i) 50 (ii) 60 (iii) 65 (iv) none of these

(c) How many students scored 50% and above marks?
(i) 19 (ii) 26 (iii) 27 (iv) none of these

(d) How many students scored less than 50% marks?
(i) 19 (ii) 26 (iii) 27 (iv) none of these

(e) What is the range of the collected marks?
(i) 60 (ii) 59 (iii) 53 (iv) none of these

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