Grouped frequency table and relative frequency chart

MathematicsStatisticsAges 14–15

A data sample (student height, weight, or daily self-study time) is grouped into classes of a chosen width. The frequency table n_i, relative frequency f_i = n_i/n·100%, and the histogram update instantly as you drag the width slider; click a bar to see the values in that class, or click "New data" for a fresh sample.