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The data file birds.csv contains measures on breeding pairs of landbird species collected from 16 islands around Britain over the course of several decades reported in Pimm et al. [1988]. For each species, the data set contains an average time of extinction on those islands where it appeared; the average number of nesting pairs (the […]

 

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For the activity data related to a small project, as shown, draw the PERT chart and find a. the critical path and its expected time b. the slack in all other paths c. the standard deviation associated with the project end date Design a cost monitoring report that expands the data provided in Table 4.1. […]

 

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The data file co2data.csv contains monthly mean atmospheric CO2 concentrations measured at Mauna Loa, Hawaii, from January 1959 to December 2003. Atmospheric CO2 concentrations show a distinct seasonal pattern, reflecting the annual cycle of plant activities. The data set has four columns: CO2 (monthly CO2 concentrations in ppm), mon (calendar month), year, and months (months […]

 

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Increased nitrogen loading to rivers due to human activities was blamed for the rise in abundance of algae in coastal waters. For example, the Neuse River Estuary fishkills in the 1990s were attributed to the increased algae due to increased nitrogen loading from the Neuse River basin, especially from concentrated animal farming in Eastern North […]

 

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