Class 9 Maths Chapter 14 Statistics

Class 9 Maths Chapter 14 (Statistics) MCQs are provided here with solutions. The multiple-choice questions provided here, online, are based on the CBSE syllabus (2020-2021) and the latest NCERT curriculum. Students are suggested to practice these chapter-wise questions and prepare for final exams to score well. Also, check Important Questions for Class 9 Maths.

MCQs on Class 9 Statistics

Students of 9th Standard can solve the MCQs on Statistics and select the correct option.

1) The ratio of the sum of observations and the total number of observations is called:

a. Mean

b. Median

c. Mode

d. Central tendency

Answer: a

2) The mean of x+2, x+3, x+4 and x-2 is:

a. (x+7)/4

b. (2x+7)/4

c. (3x+7)/4

d. (4x+7)/4

Answer: d

Explanation: Mean = (x+2+x+3+x+4+x-2)/4 = (4x+7)/4

3) The median of the data: 4, 6, 8, 9, 11 is

a. 6

b. 8

c. 9

d. 11

Answer: b

4) The median of the data: 155 160 145 149 150 147 152 144 148 is

a. 149

b. 150

c. 147

d. 144

Answer: a

Explanation: First arrange the data in ascending order.

144 145 147 148 149 150 152 155 160

Since, the number of observations here is odd, therefore,

Median = (n+1)/2 th = (9+1)/2 = 10/2 = 5th number = 149

5) The median of the data: 17, 2, 7, 27, 15, 5, 14, 8, 10, 24, 48, 10, 8, 7, 18, 28 is:

a. 10

b. 24

c. 12

d. 8

Answer: c

Explanation: Arrange the given data in ascending order:

2, 5, 7, 7, 8, 8, 10, 10, 14, 15, 17, 18, 24, 27, 28, 48

Since, the number of observations givere here is even, hence,

Median will be average of two middle terms.

n/2th = 16/2 = 8th term

(n/2 +1)th = (16/2 + 1)th = 9th term

Therefore,

Median = (10+14)/2 = 12

6) The mode of the given data: 4, 6, 5, 9, 3, 2, 7, 7, 6, 5, 4, 9, 10, 10, 3, 4, 7, 6, 9, 9 is;

a. 7

b. 9

c. 10

d. 6

Answer: b

Explanation: First arrange the data in order:

2, 3, 3, 4, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, 9, 9, 9, 9, 10, 10

Hence, mode = 9

7) The value which appears very frequently in a data is called:

a. Mean

b. Median

c. Mode

d. Central tendency

Answer: c

8) The collection of information, collected for a purpose is called:

a. Mean

b. Median

c. Mode

d. Data

Answer: d

9) The mean of the data 2, 3, 4, 5, 0, 1, 3, 3, 4, 3 is

a. 2

b. 2.2

c. 2.4

d. 2.8

Answer: d

Explanation: Mean = (2+3+4+5+0+1+3+3+4+3)/10 = 28/10 = 2.8

10) Which of the following is not a measure of central tendency?

a. Standard deviation

b. Mean

c. Median

d. Mode

Answer: a

2 Comments

  1. Thanks for giving this MCQ I love byjus and I am dialy keep on learning it

  2. Thanks for helping in my exams

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