Assume that we are interested in the average length of 1015 fishes in Square Lake, WI. Also assume that all information for all
1015 fishes in this lake is known. Suppose, the average length of all 1015 fishes in Square Lake is 98.06 mm. Derek randomly selects 50 fishes from the Square Lake and obtains and average length of 101.04 mm. Using this information, describe the Individual, Variable, Parameter and Statistic.