Representation of Tabular Data
We will discuss here about the representation of tabular data and their format. When Mrs. Singh, the new maths teacher came to the class, she wanted to know how every body had done in the last maths test. She noted down everyone’s marks. In other words, she collected data about the marks scored in mathematics.
|
Roll No 1 2 3 4
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 |
Marks 62 78 80 62 85 58
90 62 70 85 55 70 90 85 75 80 78 90 80 75 55 98 58 62 62 85 55 98 50 55 |
Notice that this data is not in any particular order. Such data is called raw data. It is usually not very easy to get useful information from raw data. For example, the only things that Mrs. Singh could find out immediately is that the highest marks was 98 and lowest marks was 50.
To understand the performance of students better Mrs. Singh
first arranged the marks in ascending order. This is how the arranged data
looked.
50, 55, 55, 55, 55, 58, 58, 62, 62, 62, 62, 62, 70, 70, 75, 75, 78, 78, 80, 80, 80, 85, 85, 85, 85, 90, 90, 90, 98, 98.
She could now easily count the number of students who got a particular mark. To make this data more useful she arranged it in a tabular format.
|
Marks Obtained |
50 55 58 62 70 75 78 80 85 90 98 |
|
No. Of Students |
2 4 2 4 2 2 2 3 4 3 1 |
Looking at this table, Mrs. Singh could easily answer the following:
(i) What was the highest mark? (98)
(ii) What was the lowest mark? (50)
(iii) What was the mark obtained by the largest number of student? (62)
5th Grade Math Problems
From Representation of Tabular Data to HOME PAGE
Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.
Recent Articles
-
Worksheets on Comparison of Numbers | Find the Greatest Number
Oct 13, 24 01:35 PM
In worksheets on comparison of numbers students can practice the questions for fourth grade to compare numbers. This worksheet contains questions on numbers like to find the greatest number, arranging… -
Counting Before, After and Between Numbers up to 10 | Number Counting
Oct 10, 24 10:06 AM
Counting before, after and between numbers up to 10 improves the child’s counting skills. -
Expanded Form of a Number | Writing Numbers in Expanded Form | Values
Oct 10, 24 03:19 AM
We know that the number written as sum of the place-values of its digits is called the expanded form of a number. In expanded form of a number, the number is shown according to the place values of its… -
Place Value | Place, Place Value and Face Value | Grouping the Digits
Oct 09, 24 05:16 PM
The place value of a digit in a number is the value it holds to be at the place in the number. We know about the place value and face value of a digit and we will learn about it in details. We know th… -
3-digit Numbers on an Abacus | Learning Three Digit Numbers | Math
Oct 08, 24 10:53 AM
We already know about hundreds, tens and ones. Now let us learn how to represent 3-digit numbers on an abacus. We know, an abacus is a tool or a toy for counting. An abacus which has three rods.
New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.