Population Distribution and Graphs

The ideal population size for a country, where resources can support the population without significant strain.

A population size smaller than what the available resources can sustainably support.

A population size exceeding the resources available to support the population.

A graphical representation of the age and sex distribution of a population.

The number of live births per 1,000 people in a population in a given time period.

The number of deaths per 1,000 people in a population in a given time period.

The rate at which the number of people in a population increases.

The composition of a population based on characteristics like age and sex.

Draw two vertical axes, leaving space for the independent variables.

Draw the average line (zero line) connecting the center of the vertical axes.

Draw a baseline for independent variables, connecting the bases of the vertical axis.

Find the average of all values in the data table.

Plot positive values above the zero line, negative values below.

A graph that displays multiple lines to compare different variables over time. Each line represents a separate variable (e.g., different crops).

The different factors being compared (e.g., cash crops, cereals, etc.).

Lines on the graph should be easily seen as different from each other, usually using different colours

Ideally, limit the graph to 5 separate lines to avoid overcrowding.

Lines on the graph should not cross unless required by the specific data.

Lines should not touch the vertical axis.

Clearly label each line with the name of the variable it represents.

Easy to create, shows comparisons clearly and simply, understand trends.

A type of graph used to represent data with rectangular bars, where the height of each bar corresponds to the value of the variable being displayed.

A variable that is changed or manipulated in an experiment, whose effects are being studied.

A variable that is measured or observed in an experiment, whose value is influenced by the independent variable.

Bars in a bar graph that touch each other, representing data where the categories are related or continuous.

Bars in a bar graph that are spaced apart, representing data where the categories are independent or distinct.

Represents the value of the dependent variable in a bar graph.

A small space left between bars and the vertical axis for clarity and visual separation.

All bars in a bar graph should be the same width, ensuring a consistent visual representation.

The difference between a data point and the average value of the dataset. It's how much a data point varies from the average.

A visual representation that displays the divergences of data points from the average line.

A horizontal line on a divergence bar graph representing the average value of the dataset.

A data point that is greater than the average value. Shown above the average line on a divergence bar graph.

A data point that is less than the average value. Shown below the average line on a divergence bar graph.

Subtracting the average value from each data point to find how much each value varies from the average.

They provide a clear visual comparison of data points to the average and allow for easy identification of trends or outliers.

They offer visual clarity, are useful for comparisons, easy to construct and comprehend, use limited space, and provide a simple way to understand data variation.

A graphical representation of the age and sex composition of a population, often used to analyze population structure and trends.

It visually depicts population shape, highlights factors impacting an area, is easy to understand, requires little to no calculations, and is useful for comparisons like male/female distribution.

It only shows population structure, cannot be combined with other methods easily, loses detailed information due to grouping, doesn't show population distribution or growth trends, is limited to population geography, uses percentages instead of exact figures, takes time to construct, needs a lot of space, and presents challenges in finding a good scale.

A circular graph where a circle represents a whole and segments divide it proportionally to show different values or components.

Steps include drawing a circle, determining proportions of components, placing the largest segment first, arranging smaller segments sequentially, labeling horizontally, using different colors for each segment, and having a key for reference.

This means the size of each segment in a simple divided circle is determined by the value or amount of the item it represents.

Labels are written horizontally, usually outside the circle, with arrows pointing to small segments for clarity.

Each segment in a simple divided circle should have a different color or pattern for visual distinction, with a key to indicate what each segment represents.