CBSE Class 6 · Artificial Intelligence · 2026-27

Basic Data Concepts: Worksheet

Skills: Abstraction, Decomposition. Circle the correct answer. Show your working in the space beside each question.

Which of these is data?
- (a) Daily temperatures recorded for a month
- (b) A wish to be taller
- (c) The colour of tomorrow’s sky
- (d) A dream you forgot
A table with student names in one column and marks in another is…
- (a) Structured data
- (b) Unstructured data
- (c) Not data at all
- (d) A computer program
In a survey, “favourite colour” is which kind of data?
- (a) Categorical (labels or groups)
- (b) Numerical (measurements)
- (c) A password
- (d) Image data
A survey of only Class 6A students is used to claim what the whole school likes. What is the problem?
- (a) The data does not represent the whole school
- (b) The survey had too many questions
- (c) Class 6A students are always wrong
- (d) Surveys can never be used
In a list of marks out of 100, one entry says 950. What should you do?
- (a) Check the entry and correct it, because it is likely an error
- (b) Keep it, because data is never wrong
- (c) Delete the whole list
- (d) Give everyone 950
Which is personal data you should NOT post publicly?
- (a) Your home address and phone number
- (b) Your favourite cricket team
- (c) The name of your favourite book
- (d) Your opinion of a movie

Answer key: Basic Data Concepts

(a) Daily temperatures recorded for a month – The other options are not recorded facts.
(a) Structured data – A names-and-marks table is structured data.
(a) Categorical (labels or groups) – So favourite colour is categorical data.
(a) The data does not represent the whole school – The data is not representative, so the claim is not reliable.
(a) Check the entry and correct it, because it is likely an error – Check the original record and correct it before using the data.
(a) Your home address and phone number – Keep your address and phone number private.