Which tool is used to show the frequency distribution of data?

Which tool is used to show the frequency distribution of data?

• A. Check Sheets
• B. Histograms
• C. Pareto Analysis
• D. Flow Diagram

Answer: (B)

A histogram is the best choice for showing the frequency distribution of data. It uses adjacent bars where each bar represents a data range (bin) and the height shows how many observations fall into that range. This visualization reveals the shape of the data—the center, spread, and whether it’s symmetric, skewed, or has multiple peaks—and can also highlight outliers or gaps. Other tools serve different purposes: a check sheet collects data for later counting, a Pareto analysis highlights the largest factors in descending order, and a flow diagram maps the steps in a process. So for displaying how data values are distributed across ranges, the histogram is the most direct and informative tool.

A histogram is the best choice for showing the frequency distribution of data. It uses adjacent bars where each bar represents a data range (bin) and the height shows how many observations fall into that range. This visualization reveals the shape of the data—the center, spread, and whether it’s symmetric, skewed, or has multiple peaks—and can also highlight outliers or gaps. Other tools serve different purposes: a check sheet collects data for later counting, a Pareto analysis highlights the largest factors in descending order, and a flow diagram maps the steps in a process. So for displaying how data values are distributed across ranges, the histogram is the most direct and informative tool.