Acertain population of beavers builds dams across a stream to catch fish. some years the stream carries more water than other
years! the data below was collected by scientists studying the stream over a sixteen year period.
average stream depth average number of average number of
years
(meters)
beaver dams beavers
2000-2003 1.20
- 17
2004-2007 0.92
- 12
2008-2011
1.45
7
21
2012-2015 0.78
2
if the average depth of the stream for the next 4 years is 1.60 meters, which of the following is most likely to occur?
a.
the average size of each beaver will increase.
b.
the size of the beaver population will increase
c.
the size of the beaver population will decrease
d.
the average size of a beaver dam will decrease
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