Frequency Distributions (Leaving Cert Mathematics): Quizzes

A table showing how often values occur

Simple frequency distribution

For large data sets

Proportion or percentage of total frequency

$\text{Range} = \text{Maximum} - \text{Minimum}$

$\frac{\text{Range}}{\text{Number of Intervals}}$

Divide frequency by total observations

$3$

$12$

$6$

Identify unique values in the data