An ecologist counts 75 cardinals in an area measuring 15 square kilometers. What is the population density of the cardinals?

5 Cardinals per square kilometer.

Explanation:

Given dа ta:

Total number of cardinals = 75

Area = 15

Population density = ?

Solution:

Population density = Total number of cardinals/Area

By putting values in above formula:

Population density = 75/15 = 5 cardinals/square kilometer.

Hence the population density of an area is measure of cardinals per square kilometer. So it is 5 cardinal/square kilometer.

5

Explanation:

We know that,

number of count of cardinals = 75; and

measured area = 15 square kilometers.

To find the population density of the cardinals in an area of 15 square kilometers, we need to divide the number of cardinals by the given unit area:

Population density of cardinals = 75 / 15 = 5

Therefore, the population density of cardinals in an area measuring 15 square kilometers is 5.