# Here we have given NCERT Solutions for Class 6 Maths Chapter 9 Data Handling Ex 9.1.

 Board CBSE Textbook NCERT Class Class 6 Subject Maths Chapter Chapter 9 Chapter Name Data Handling Exercise Ex 9.1 Number of Questions Solved 2 Category NCERT Solutions

## NCERT Solutions for Class 6 Maths Chapter 9 Data Handling Ex 9.1

Ex 9.1 Class 6 Maths Question 1.
In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks. (a) Find how many students obtained marks equal to or more than 7?
(b) How many students obtained marks below 4?
Solution:
In the first column of the table, we write all the values of marks scored by the students starting from the lowest to the highest. In the second column, a vertical bar (|) called the tally mark is put against the number, whenever it occurs. For our convenience, we shall keep the tally marks in bunches of five, the fifth mark being drawn diagonally across the first four. We continue this process for all the values of the first column. Finally, we count the number of tally marks corresponding to each observation and write the number in the third column to represent the number of students.
Thus, we have the table as under:  From the above, clearly the number of students who obtained marks equal to or more than 7 marks are
5 + 4+3=12
Clearly, from the above table the number of students scoring marks below 4 are
2 + 3 + 3 = 8

Ex 9.1 Class 6 Maths Question 2.
Following is the choice of sweets of 30 students of class VI. Ladoo, Barfi, Ladoo, Jalebi, Ladoo, Rasgulla, Jalebi, Ladoo, Barfi, Rasgulla, Ladoo, Jalebi, Jalebi, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo, Rasgulla, Ladoo, Ladoo, Barfi, Rasgulla, Rasgulla, Jalebi, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo.
(a) Arrange the names of sweets in a table using tally marks.
(b) Which sweet is preferred by most of the students?
Solution:
(a) The required table is as under: (b) The sweet Ladoo is preferred by the most of the students.

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