Respuesta :
Answer:
demographic pyramid or  demographic research
Explanation:
The population pyramid or demographic pyramid is a histogram or bar graph arranged horizontally whose length is proportional to the number of people representing the age and sex of the population in each of these bars and said information serves to know the percentage of the population. population.
Graphically it is a double frequency histogram. The double histogram bars are arranged horizontally, that is, on the abscissa line, and the age groups of the male population on the left and those representing the female population on the right are conventionally indicated. In turn, in the axis of the ordinates, age groups are generally arranged and identified, usually from five to five years or five-year calls: (0 to 4, 5 to 9, 10 to 14, etc.), placing the youngest bars at the bottom of the graph and progressively increasing toward the cusp the ages of each interval. It could be said that the birthdays of each group of five in five years constitute the moment of separation of one bar from the next. Thus, the 0 to 4 year bar includes all children between the time of birth (0 years) and the 5th birthday. In this way, when he turns 5, he will become part of the upper bar or five-year period: (5 to 9 years).
