Archaeology: Hopi Village Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately normally distributed, with a mean of 5.1 millimeters

(mm) and a standard deviation of 0.9 mm (Source:

Homol’ovi II: Archaeology of an Ancestral Hopi Village, Arizona, edited by E. C. Adams and K. A.

Hays, University of Arizona Press). For a randomly found shard, what is the probability that the thickness is

(a) less than 3.0 mm?

(b) more than 7.0 mm?

(c) between 3.0 mm and 7.0 mm?

AppendixLO1