Data and its Interpretation
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.
Supposing that there were 40 students in science in the year 2009 . How much total of marks did they receive combined together ?
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| Right Option : B | |||
| View Explanation | |||
Facts or figures collected with a definite purpose are called _______________ . | |||
| Right Option : A | |||
| View Explanation | |||
In which year the difference between the highest and the average marks in Maths was maximum ?
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| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
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8thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
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10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
