Data Collection and Cleaning
What data collection and cleaning means
Getting good quality data.
Before you start
Not confident yet? Work through What is Data Science first.
Worked example
One question from this skill's own question bank, shown with its full working.
Cleaning data means
- fixing errors and missing values
- deleting all data
- painting the computer
- ignoring the data
Working: Data cleaning corrects errors and handles missing values.
Curriculum and exam alignment
Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.
Related skills
Other Data Fundamentals skills in Data Science & AI, at the same point in the course.
Other Data Science & AI topics
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Practise data collection and cleaning
6 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.