Almost 2 million persons per year visit wondrous Glacier National Park. Due to the weather, monthly park attendance figures varied widely during a recent year:

A. Notice that park attendance is lower in December than in January, despite a 42.4% average rate of growth in monthly attendance. How is that possible?
B. Suppose the data described in the table measured park attendance over a number of years rather than during a single year. Explain how the arithmetic average annual rate of growth gives a misleading picture of the growth in parkattendance.

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Month Visitors 7,481 January February March April May July August September October November December Average 9.686 29.50% 13,316 37.50% 24,166 81.50% 89.166 269.00% 255,237 186.20% 540,488 111.80% 528.716-2.20% 286.602-45.80% 57.164-80.10% 12.029-79.00% 6.913-42.50% 152.580 42.40%