Grouped Frequency and Cumulative Frequency (HSC SSCE Mathematics Standard): Flashcards

Groups organizing data values into intervals

No, intervals must not overlap

5 to 15 groups

Midpoint of each class interval

$\frac{lower + upper}{2}$

Running total of frequencies

Add current frequency to all previous frequencies

Bar chart displaying grouped data

Yes, bars touch (continuous data)

Cumulative frequency polygon