RS Aggarwal Solutions for Class 8 Chapter 21 - Data Handling Exercise 21A

Students can download RS Aggarwal Solutions for Class 8 Maths Chapter 21- Exercise 21A, Data Handling from the links provided below. Our tutors have solved the RS Aggarwal Solutions in an easily understandable manner which helps students to obtain high marks in their exams. In Exercise 21A of RS Aggarwal Class 8 Maths, we study about Frequency Distribution using Frequency Distribution Table.

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1. The number of members in 20 families are given below:

4,6,5,5,4,6,3,3,5,5,3,5,4,4,6,7,3,5,5,7

Solution: Arrange the members of the families in ascending order

We get, 3,3,3,3,4,4,4,4,5,5,5,5,5,5,5,6,6,6,7,7

∴ The frequency distribution table is given below

 Number of family members Tally marks Number of Families(Frequency) 3 IIII 4 4 IIII 4 5 $\large&space;\bcancel{IIII}&space;II$ 7 6 III 3 7 II 2 TOTAL 20

2. A dice was thrown 30 times and the following outcomes were noted:

2,1,2,4,6,1,2,3,6,5,4,4,3,1,1,3,1,1,5,6,6,2,2,3,4,2,5,5,6,4

Prepare a frequency table.

Solution: Arrange the outcomes in ascending order

We get,

1,1,1,1,1,1,2,2,2,2,2,2,3,3,3,3,4,4,4,4,4,5,5,5,5,6,6,6,6,6

∴ The frequency distribution table is given below

 Number of Dice Tally marks Number of Outcomes(Frequency) 1 $\large&space;\bcancel{IIII}&space;I$ 6 2 $\large&space;\bcancel{IIII}&space;I$ 6 3 IIII 4 4 $\large&space;\bcancel{IIII}$ 5 5 IIII 4 6 $\large&space;\bcancel{IIII}$ 5 TOTAL 30

RS Aggarwal Solutions for Class 8 Maths Chapter 21- Exercise 21A

Exercise 21A of RS Aggarwal Class 8, Data Handling. This exercise mainly consists of questions related to Frequency distribution.

Students are suggested to practice the problems on a regular basis which will help them excel in their exams and increase their overall percentage. Practising as many times as possible helps in building time management skills and also boosts the confidence level to achieve high marks.