For 5 years, a biologist studied a population of mice living…
For 5 years, a biologist studied a population of mice living in a field. The mice have three age classes: 1 year old, 2 years old, and 3 years old. The number of individuals in each age class over the course of the study is shown in the table. Number of Individuals in Each Age Class Each Year Age Class Year 1 Year 2 Year 3 Year 4 Year 5 1 year old 12 36 108 324 972 2 year old 8 24 72 216 648 3 year old 4 12 36 108 324 The geometric mean growth rate (λ) from year 1 to year 2 is