Comparing the Distribution of a Numerical Variable Across Groups (VCE SSCE General Mathematics): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
Comparing distributions investigates...
Comparing distributions investigates...
Relationship between numerical & categorical variable
Two graphical methods for comparing distributions
Two graphical methods for comparing distributions
Back-to-back stem plots & parallel boxplots
Best use of back-to-back stem plots
Best use of back-to-back stem plots
Comparing two small data sets
Best use of parallel boxplots
Best use of parallel boxplots
Larger data sets or more than two groups
Three features to compare in distributions
Three features to compare in distributions
Centre, spread, outliers
Statistic for comparing centre
Statistic for comparing centre
Median
Statistic for comparing spread
Statistic for comparing spread
IQR (Interquartile range)
Structure of back-to-back stem plot
Structure of back-to-back stem plot
Central stem, two sets of leaves (one per group)
Required language when comparing statistics
Required language when comparing statistics
Comparative (e.g., 'higher than', 'lower than')
Parallel boxplots vs back-to-back: key advantage
Parallel boxplots vs back-to-back: key advantage
Can compare more than two groups