Recall
Set 1: Quick Check
Recognize completeness, validity, consistency, uniqueness, and applicability issues.
Data Quality and Profiling
Profile data for applicability, completeness, validity, consistency, uniqueness, and useful ranges.
Start Chapter PracticeChapter plan
What you will be able to do
- Create and interpret a concise data-quality profile.
- Study time
- 24–30 minutes, self-paced
- Course
- Data Analysis for Business (Beginner)
- Practice order
- Four sets, completed in sequence
Chapter practice
Practice in chapter order
10 activities · 80% mastery target
Start set 1
Guided application
Set 2: Core Practice
Calculate profile metrics and order a repeatable data-quality review.
Hands-on
Set 3: Workplace Task
Profile a small order or revenue extract and determine its fitness for purpose.
Independent check
Set 4: Mastery Check
Diagnose vague rules, premature cleaning, and decision-critical quality gaps.