Web Analytics

The bird population on an island is declining at a rate of 2.2% per year. If the population was 3500 in the year 2009, which is the best prediction of the population in the year 2014? 3500 in 2009

3500 (.022) = 77

3500 - 77 = 3423

3423 in 2010

3423 (.022) = 75.31

3423 - 75.31 = 3347.69

3347.69 in 2011

3347.69 (.022) = 73.65

3347.69 - 73.65 = 3274.04

3274.04 in 2012

3274.04 (.022) = 72.03

3274.04 - 72.03 = 3202.01

3202.01 in 2013

3202.01 (.022) = 70.44

3202.01 - 70.44 = 3131.57

3131.57 in 2014