Chapter 3 Data Handling Exercise 3.2


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?
Solution:
Given data:
6, 15, 120, 50, 100, 80, 10, 15, 8, 10, 15
NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2 2
Arranging the given data in increasing order, we get
NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2 3

Question 4.
Find the mode and median of the data:
13, 16, 12, 14, 19, 12, 14, 13, 14
Solution:
Arranging the given data in increasing order, we get


Here, 14 occur 3 times (highest)
Thus, mode = 14
n = 9(odd)


= 5th term = 14
Hence, mode = 14 and median = 14.

Question 5.
Tell whether the statement is true or false.
(i) The mode is always one of the number 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.
Solution:
(i) True
(ii) False
(iii) True
(iv) False

NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2 Q1
NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2 Q2
NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2 Q3
NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2 Q4
NCERT Solutions for Class 7 Maths Chapter 3 Data Handling Ex 3.2 Q5

Chapter 3 Data Handling Exercise 3.2