NCERT Solutions Class 7 Maths Exercise 3.2 Chapter 3 Data Handling
Simple solutions for NCERT Solutions for Class 7 Maths Exercise 3.2 Chapter 3 Data Handling are given here in the post. This NCERT Solutions for Class 7 Maths Exercise 3.2 contains topics related to the raw data collection and its organisation. so we definitely want students of Class 7 to solve Class 7 Data Handling NCERT Exercise 3.2 to empower their basics and test the students capability of understanding the concepts. It also helps the students of CBSE Class 7 Maths students
Question 1:
The scores in mathematics test (out of 25) of students is as follows:
19, 25, 23, 20, 9, 20, 15, 10, 5, 16, 25, 20, 24, 12, 20
Find the mode and median of this data. Are they same?
Answer 1:
Arranging the given data in ascending order,
5,9, 10, 12, 15, 16, 19, 20, 20, 20, 20, 23, 24, 25, 25
Mode is the observation occurred the highest number of times.
Therefore, Mode = 20
Median is the middle observation = 20
Yes, Mode and Median are same of given observation.
Question 2:
The runs scored in a cricket match by 11 players is as follows:
6, 15, 120, 50, 100, 80, 10, 15, 8, 10, 15
Find the mean, mode and median of this data. Are the three same?
Answer 2:
Arranging the given data in ascending order,
6,8, 10, 10, 15, 15, 15, 50, 80, 100, 120
Median is the middle observation = 15
Therefore, Mode and Median is 15.
No, the mean, median and mode are not same.
Question 3:
The weight (in kg) of 15 students of a class are:
38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38,47
(i) Find the mode and median of this data.
(ii) Is there more than one mode?
Answer 3:
Arranging the given data in ascending order,
32, 35, 36, 37, 38, 38, 38, 40, 42, 43, 43, 43, 45, 47,50
(i) Mode is the observation occurred the highest number of times.
Therefore, Mode = 38 and 43
Median is the middle observation = 40
(ii) Yes, there are 2 modes.
Question 4:
Find the mode and median of the data: 13, 16, 12, 14, 19, 12, 14, 13, 14.
Answer 4:
Arranging the given data in ascending order,
12, 12, 13, 13, 14, 14, 14, 16,19
Mode is the observation occurred the highest number of times = 14
Median is the middle observation = 14
Question 5:
Tell whether the statement is true or false:
(i) The mode is always one of the numbers in a data.
(ii) ‘The mean is one of the numbers in a data.
(iii) ‘The median is always one of the numbers in a data.
(iv) ‘The data 6, 4, 3, 8, 9, 12, 13,9 has mean 9.
Answer 5:
(i) True (ii) False (iii) True _(iv) False
