Describing and Comparing Distributions (HSC SSCE Mathematics Standard): Flashcards

Smoothness, symmetry, number of modes

Value appearing most frequently (peak with highest frequency)

Single peak or mode

Two distinct peaks or modes

Long tail extending toward right (positive side)

Long tail extending toward left (negative side)

$\bar{x} = \frac{\text{sum of scores}}{\text{number of scores}}$

Not affected by outliers or extreme values

Highest score - lowest score

$Q_3 - Q_1$