Data and its Interpretation


Data Handling - Concepts
Class - 6th CBSE Subjects
 
 
Concept Explanation
 

Data and its Interpretation

Data: Data is a collection of numbers to give some useful information. Exrtraction meaningful information from collected data such as organising, summarising, presenting and analysing the data is a branch of mathematics called statistics. Data is defined as the particular information in numeric form.

Primary Data: If the data is collected by the investigator herself/himself with the sepcific purpose, then such data is called the primary data.

Secondary Data: If the data collected by someone else other than investigator are kown as secondary data.

Grouped Data: The data can be represented into classes or groups. Such a presentation is known as grouped data. Firstly it may arrange in ascending or descending order and then divide into groups.

Raw Data: Raw data is the data which is not arranged in any particular fashion or pattern. It is the original form of data.

Recording Data: The data is collected and recorded by the investigator with a definite objective in mind. For example in a class of 18 students a teacher wants to know the subject which maximum number of students like. The teacher will have to record the favourite subject of different students.For this the teacher will make a list  with the name of the student and their favourite subject.

S.No Name of Student Favourite Subject S.No Name of Student Favourite Subject
1 Rohan English 10 Seema Maths
2 Rajesh Sceince 11 Preeti English
3 Raghav Maths 12 Amar Maths
4 Farida Science 13 Ravi English
5 Fatima Science 14 Anita Science
6 Satish English 15 Supriya Maths
7 Akhtar Science 16 Sapna English
8 Usha English 17 Manoj Maths
9 Ram Maths 18 Neena English

Organisation of Data: Once the data has been collected. Then the teacher has to organise the data to know the subject which is liked by most of the students.For this the teacher will count the number of times a particular subject appears in the list.

Maths : 6 times

Science :  5 times

English:  7 times

So the most favourite subject is English as it is occuring seven times.

Sample Questions
(More Questions for each concept available in Login)
Question : 1

The inclusive form of class boundary is defined as ________________________________________.

Right Option : B
View Explanation
Explanation
Question : 2

____________________ means to arrange the numerical data so that it can be analysed for the purpose of arriving at an informed conclusion.

Right Option : C
View Explanation
Explanation
Question : 3

In which year the difference between the highest and the average marks in Maths was maximum ?

Right Option : D
View Explanation
Explanation
 
 
 


Students / Parents Reviews [10]