Question

a. calculate the population density of each country below. you must show all your work to get full marks. (3 marks)
b. which country is the most densely populated? (1 mark)
country: venezuela
population: 28 047 938
area: 912 050 km²
country: saudi arabia
population: 26 534 504
area: 2 149 690 km²
country: lebanon
population: 4 140 289
area: 10 400 km²

Explanation:

Step1: Recall Population Density Formula

Population density ($d$) is calculated as $d=\frac{\text{Population}(P)}{\text{Area}(A)}$, where $P$ is the total population and $A$ is the land area.

Step2: Calculate for Venezuela

Given $P = 28047938$ and $A=912050\space km^2$.
$d_{Venezuela}=\frac{28047938}{912050}\approx 30.75$ (people per $km^2$).

Step3: Calculate for Saudi Arabia

Given $P = 26534504$ and $A = 2149690\space km^2$.
$d_{Saudi\ Arabia}=\frac{26534504}{2149690}\approx 12.34$ (people per $km^2$).

Step4: Calculate for Lebanon (Assuming Area is 10400 $km^2$ as partially visible)

Given $P = 4140289$ and $A = 10400\space km^2$.
$d_{Lebanon}=\frac{4140289}{10400}\approx 398.10$ (people per $km^2$).

Step5: Compare Densities (for part b)

Compare $30.75$, $12.34$, and $398.10$. The largest is Lebanon's density.

Answer:

(for part b):
Lebanon is the most densely populated country among the three.