A circular chart divided into sectors, where each sector represents a proportion of the whole.

The size of each sector is proportional to the percentage or fraction of the total data.

Best used for displaying proportions (e.g., percentage of students choosing different subjects).

Limitation: Difficult to compare precise values when sector sizes are similar.

Uses rectangular bars to represent values.

Bars can be vertical (column chart) or horizontal.

The height (or length) of each bar corresponds to the value of the category.

Best used for comparing categories of discrete data (e.g., exam scores of different students).

Limitation: Not ideal for showing trends over time.

Displays data points connected by a line, showing trends over time.

The x-axis usually represents time, while the y-axis represents the measured value.

Best used for tracking changes over time (e.g., a student's performance across multiple tests).

Limitation: Not suitable for comparing categories of unrelated data.