An online store finds that customers who buy laptops often also buy laptop bags. This discovery is an example of:
MCQs — Data and Analysis
Practice questions for Computer Science.
A hospital wants to show monthly patient numbers using bars and lines. Which technique should it use?
Which task needs machine learning rather than fixed rules?
Ali collects test scores and compares the class averages to find the hardest subject. Which field is he mainly using?
Data with categories that have no natural order, such as blood group or eye colour, is:
Categorical data with a meaningful order or rank, such as small, medium and large, is:
Numerical data that can only take countable whole values, such as the number of students, is:
Numerical data that can take any value within a range, including decimals, such as height or weight, is:
Which data type has equal intervals between values but no true zero point?
Which data type has equal intervals and a true zero point?
Data collected first-hand by the researcher for a specific purpose is called:
Data that was collected earlier by someone else and is reused, such as government reports, is:
An organised collection of data stored electronically for easy access, management and updating is a:
How does ordinal data differ from nominal data?
What is the key difference between discrete and continuous data?
Why is temperature in °C interval data rather than ratio data?
How does a dataset differ from a database?
Why is primary data often more suitable for a specific study?
What is one advantage of secondary data?
Why must data be stored properly in data science?
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📌 MCQs — FAQs
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