Histograms (Grade 11 NSC Matric Mathematics): Flashcards

Bar chart showing frequency of outcomes in a dataset

How many times events occur

Adjacent bars touch each other

$\frac{\text{Event count}}{\text{Total observations}}$

Proportion or percentage each event represents of total dataset

Group data into intervals

Intervals must be equal in width

Line graph showing same info as histogram using connected lines

Connect midpoints of top of each histogram bar

Better for comparing multiple datasets on same graph