Population Pyramid Diagram is an important statistical diagram for the comparison of
(i) Sex composition
(ii) Employment structure
(iii) Status of population change and Age of the population
(iv) Age structure

Question

Population Pyramid Diagram is an important statistical diagram for the comparison of 
(i) Sex composition 
(ii) Employment structure 
(iii) Status of population change and Age of the population 
(iv) Age structure

Accepted Answer

Option 4 is the correct answer because a population pyramid diagram is specifically designed to visually represent the **sex composition (i)** and **age structure (iv)** of a population. The shape of the pyramid reveals important information about the population's growth potential, dependency ratios, and historical demographic trends. The pyramid also shows the **status of population change and age of the population (iii)** by illustrating the relative proportions of different age groups, which directly reflects birth rates, death rates, and migration patterns over time. A wide base indicates high birth rates and a growing population, while a narrow base suggests declining birth rates and a potentially shrinking population. Bulges or constrictions in the pyramid can indicate past events that affected specific age cohorts.

Here's why the other options are incorrect:

*   **Option 1: (i), (ii), (iii) and (iv)** While a population pyramid *can* indirectly provide some insights that *relate* to employment structure, it is *not* its primary or direct purpose. Employment structure is better analyzed using other statistical tools and datasets. The pyramid's main focus is on age and sex distribution, and how these factors influence population change. Therefore, including employment structure makes this option incorrect.

*   **Option 2: (i), (ii) and (iv)** As explained above, employment structure (ii) is not a direct component represented in a population pyramid. The pyramid primarily focuses on age, sex, and the resulting implications for population change. Therefore, including employment structure makes this option incorrect.

*   **Option 3: (ii), (iii) and (iv)** Again, employment structure (ii) is not directly represented in a population pyramid. The pyramid's core function is to visualize age and sex distribution, which then allows for inferences about population change. Therefore, including employment structure makes this option incorrect.