A biologist is researching the population density of lizards near a boulder in a desert. The biologist counts 15 lizards within a radius of 1/4 mi of the boulder.

What is the population density of lizards?

In order to identify the population density of the lizards, you need to know first, the formula.

Formula = number of people : land area = population density

Number of lizards = 15

Land area = 1/4 mi radius of the boulder

Population Density = ?

Solution = 15 : 1/4 = 3.75

Population Density = 3.75