Define the 7 QC tools.

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Accepted Answer

The 7QC tools are essential techniques for quality control and improvement in various industries.

1. Cause-and-Effect Diagram: Also known as Fishbone Diagram, it helps identify root causes of a problem. Example: Analyzing defects in a product.
2. Check Sheet: A structured form for collecting and analyzing data. Example: Tracking the number of defects over time.
3. Control Chart: A graphical tool to monitor process variation over time. Example: Tracking the temperature in a manufacturing process.
4. Histogram: A bar graph representing the frequency distribution of data. Example: Displaying test scores of students.
5. Pareto Chart: A bar graph that identifies the most significant factors in a dataset. Example: Analyzing customer complaints to focus on major issues.
6. Scatter Diagram: A graph that shows the relationship between two variables. Example: Correlating hours of training with employee performance.
7. Flow Chart: A diagram that represents a process or workflow. Example: Mapping out the steps in a manufacturing process.

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