Again, the posted price may not be the same as the scanned price. Enforcement of laws against overpricing and retail price errors vary from state to state, with Michigan and California taking the lead. In these two states a combination of bad publicity, tougher regulations, and stiff fines has not only reduced the pricing error rate but underpricing mistakes have begun to exceed overpricing mistakes. The article was written by Bob Trebilcock and appears on page 110. These societies did not keep close track of their populations, and in many cases there were no written records.
Data often drive historical theories.
Even when there are written historical records, statistical controversies can be heated. Estimates of the total number of Africans transported across the Atlantic between 1500 and 1900 have ranged wildly between 3.5 million and 100 million. Attempts by historians in recent years to estimate the number of Africans brought to the New World have hovered between 10 and 15 million. According to Lingua Franca , most demographic historiographers believe that historic data should be viewed critically and with skepticism. The article was written by Lawrence Osborn and appears on page 49.