Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
The marks scored by 40 students of class IX in mathematics are given below:
$81, 55, 68, 79, 85, 43, 29, 68, 54, 73, 47, 35, 72, 64, 95, 44, 50, 77, 64, 35, 79, 52, 45, 54, 70, 83, 62, 64, 72, 92, 84, 76, 63, 43, 54, 38, 73, 68, 52, 54.$
Prepare a frequency distribution with class size of 10 marks.
Given:
The marks scored by 40 students of class IX in mathematics are given below:
$81, 55, 68, 79, 85, 43, 29, 68, 54, 73, 47, 35, 72, 64, 95, 44, 50, 77, 64, 35, 79, 52, 45, 54, 70, 83, 62, 64, 72, 92, 84, 76, 63, 43, 54, 38, 73, 68, 52, 54.$
To do:
We have to prepare a frequency distribution with a class size of 10 marks.
Solution:
Maximum marks $= 95$
Minimum marks $= 29$
Range $= 95 - 29$
$= 66$
The required frequency distribution is:
| Marks | Tally marks | Number of students |
| 20-30 | | | 1 |
| 30-40 | ||| | 3 |
| 40-50 | 5 | |
| 50-60 | 8 | |
| 60-70 | 9 | |
| 70-80 | 8 | |
| 80-90 | |||| | 4 |
| 90-100 | || | 2 |
| Total | 40 |
Updated on: 10-Oct-2022
76 Views
Advertisements