Analysing Data and Information (Grade 11 NSC Matric Computer Application Technology): Flashcards
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Practise the cards
10 cards from this deck
Purpose of analysing data after collection
Purpose of analysing data after collection
Identify trends and patterns, draw meaningful conclusions
Five essential data questions
Five essential data questions
How many? Most popular? Least common? How many more? Average?
Definition of trends in data
Definition of trends in data
General tendency of data to move in a direction over time
Upward trend
Upward trend
Data points generally increase over time
Downward trend
Downward trend
Data points decrease over time
Correlation trend
Correlation trend
Two variables moving in opposite directions (inverse)
Step changes
Step changes
Sudden, dramatic increases or decreases in data
How patterns differ from trends
How patterns differ from trends
Patterns don't involve time; they show data distribution shape
Central patterns
Central patterns
Median value in middle; symmetrical distribution around centre
Spread patterns
Spread patterns
Show how much data varies across its range