Click on the links below to learn about displaying frequency:

Frequency Tables

Line Plots

Link #1-Ellerbruch

Link #2-Glencoe (audio-visual lesson)

Link #3-Explore Learning

Link #4-NSA (teacher lesson)

Mean, Median, Mode, and Range

Histograms

Link #1-Netmba-tutorial 

Link #2-Shodor (interactive)

Link #3-Illuminations (interactive)

Link #4-Line Plots to Histograms

Link #4-NVLM (virtual manipulative)