Summary (Grade 11 NSC Matric Mathematics): Flashcards

Bar charts showing frequency of events/values in data

Cumulative histogram showing running total of frequencies

First = 0, last = total number of data points

Connected line segments and points

Standard deviation = square root of variance

SD: same units as data; variance: squared units

Mean approximately equals median

Mean $>$ median

Mean $<$ median

Data value far away from rest of data points