Which EDA technique is used to display the distribution of a single variable, especially in cases of categorical data?

Solution (By Examveda Team)

Option A: Box Plot - A box plot is great for showing the distribution of numerical data, particularly to visualize quartiles, median, and outliers. It's not typically used for categorical data.

Option B: Scatter Plot - A scatter plot is used to show the relationship between two numerical variables. It plots data points on a graph to reveal trends and correlations. It's not suitable for visualizing the distribution of a single categorical variable.

Option C: Histogram - A histogram is used to display the distribution of numerical data by grouping it into bins. It shows how many data points fall within each bin. While useful, it's designed for numerical, not categorical, data.

Option D: Bar Chart - A bar chart is specifically designed to display the distribution of categorical data. Each bar represents a category, and the height of the bar shows the frequency (or count) of that category. This allows us to easily see which categories are most common.

Therefore, the correct answer is D: Bar Chart.