13.65 Annual precipitation.
Global temperatures are increasing. Great Lakes water levels meander up and down (see Figure 13.41, page 687). Do all environmental processes exhibit time series patterns? Consider a time series of the annual precipitation (inches) in New Jersey from 1895 through 2013.35
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(a) Precipitation over time looks random. (b) The ACF shows the annual precipitation series is random. (c) The annual precipitation series is random.