Displaying and Describing Numerical Data - Further Exploration (VCE SSCE General Mathematics): Flashcards
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Practise the cards
10 cards from this deck
Discrete data
Discrete data
Numerical data taking only specific, separate values
Continuous data
Continuous data
Data taking any value within a range, including decimals
Percentage formula in frequency tables
Percentage formula in frequency tables
(frequency ÷ total) × 100
Three principles for grouping data
Three principles for grouping data
Every value fits; no overlaps; no gaps
Recommended number of intervals
Recommended number of intervals
5 to 15 groups
Modal interval
Modal interval
Interval with highest frequency
Histogram vs bar chart difference
Histogram vs bar chart difference
Histogram: numerical data; bar chart: categorical data
Histogram vertical axis
Histogram vertical axis
Frequency (count or percentage)
Histogram horizontal axis
Histogram horizontal axis
Values of the numerical variable
When to group data into intervals
When to group data into intervals
When variable has many values or is continuous