Ilm Gah Website is under maintenance! If you found any error please let us know. Contact Us ×

What is Data?


What is Data? Data is a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things. Q...

What is Data?

Data is a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things.

Qualitative vs Quantitative

Data can be qualitative or quantitative.
  • Qualitative data is descriptive information (it describes something)
  • Quantitative data, is numerical information (numbers).
Types of Data
And Quantitative data can also be Discrete or Continuous:
  • Discrete data can only take certain values (like whole numbers)
  • Continuous data can take any value (within a range)
Put simply: Discrete data is counted, Continuous data is measured

Example: What do we know about Arrow the Dog?

Arrow the Dog
  • He is brown and black
  • He has long hair
  • He has lots of energy
  • Discrete:
    • He has 4 legs
    • He has 2 brothers
  • Continuous:
    • He weighs 25.5 kg
    • He is 565 mm tall
To help you remember think "Quantitative is about Quantity"

More Examples

  • Your friends' favorite holiday destination
  • The most common given names in your town
  • How people describe the smell of a new perfume
  • Height (Continuous)
  • Weight (Continuous)
  • Petals on a flower (Discrete)
  • Customers in a shop (Discrete)


Data can be collected in many ways. The simplest way is direct observation.
Example: you want to find how many cars pass by a certain point on a road in a 10-minute interval.
So: stand at that point on the road, and count the cars that pass by in that interval. 
We collect data by doing a Survey.

Census or Sample

Census is when we collect data for every member of the group (the whole "population").
Sample is when we collect data just for selected members of the group.
Example: there are 120 people in your local football club.
You can ask everyone (all 120) what their age is. That is a census.
Or you could just choose the people that are there this afternoon. That is a sample.
A census is accurate, but hard to do. A sample is not as accurate, but may be good enough, and is a lot easier.


Data or Datum?

The singular form is "datum", so we say "that datum is very high".
"Data" is the plural so we say "the data are available", but it is also a collection of facts, so "the data is available" is fine too.



11 August 2017,1,21 July 2017,1,25 July 2017,1,Admissions,6,Agri-Jobs,1,Animated Moral Stories,2,Atomic-Jobs,1,Colleges,1,Computer,32,Conferences,2,CSS Agriculture,3,CSS Current Affairs,4,CSS Data,62,CSS Date Sheet,1,CSS English Essay,10,CSS Everyday Science,7,CSS General Knowledge,1,CSS History of Pakistan,2,CSS Islamiyat,4,CSS Pakistan Affairs,28,CSS Past Paper,59,Data,5,Date Sheets,5,Derivative,2,Differentiate between,2,Differentiation,1,Employees,1,English1 FSc Notes,15,English3 FSc Notes,3,English4 FSc Notes,2,Entry Test,1,Essay Writing,3,Exchange Programs,3,Food Jobs,2,Form of Verbs,26,Guess 2nd Year,10,Important Questions Chemistry2 FSc,4,Important Questions Physics2 FSc,5,Integration,5,Inter Date Sheet,1,Internships,2,Jobs,14,Moral-Stories,1,NAB-Jobs,1,News-Updates,6,Novel,1,OP Questions Chemistry2 FSc,4,OP Questions Physics2 FSc,5,Presentations,2,Quotes,1,Results,12,Roll Number Slips,1,Scholarships,15,Statistics,6,Test Chemistry2 FSc,1,Tips,3,Urdu Essays,1,Vacancies,1,Videos,2,Writting Tips,1,
Ilm Gah: What is Data?
What is Data?
Ilm Gah
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy