Velvetleaf is a particularly annoying weed in cornfields. It produces lots of seeds, and the seeds wait in the soil for years until conditions are right. How many seeds do velvetleaf plants produce? Here are counts from 28 plants that came up in a cornfield when no herbicide was used:

a. 2450 2504 2114 1110 2137 8015 1623 1531 2008 1716
b. 721 863 1136 2819 1911 2101 1051 218 1711 164
c. 2228 363 5973 1050 1961 1809 130 880