Organising Data (Grade 11 NSC Matric Mathematical Literacy): Flashcards
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Two main methods of organising data
Two main methods of organising data
Sorting data and creating frequency tables
Sorting data definition
Sorting data definition
Arranging information in a particular order
Ascending order
Ascending order
Arranging data from smallest to largest
Descending order
Descending order
Arranging data from largest to smallest
Two-criteria sorting
Two-criteria sorting
Group by one trait, then order by another within each group
Frequency value
Frequency value
How often a particular data piece appears in the dataset
Class intervals
Class intervals
Ranges that group similar values together
Purpose of frequency tables
Purpose of frequency tables
Summarise data, compare categories, spot patterns & trends
Formula for percentage in frequency table
Formula for percentage in frequency table
(Category count / Total) × 100
Why use percentages in frequency tables
Why use percentages in frequency tables
To fairly compare groups of different sizes