When trying to find all possible causes of a problem, which of the following tools would be useful?
I. Systematic troubleshooting and brainstorming.
II. Fishbone diagrams and histograms.
III. Checklists and scatter diagrams.
IV. Control charts and graphs.
To find all possible causes of a problem, it is beneficial to use a variety of tools for a comprehensive analysis. Systematic troubleshooting and brainstorming are fundamental methods for identifying potential causes. Fishbone diagrams help in visually mapping out the many potential causes of a problem. Histograms, scatter diagrams, and control charts are statistical tools that help in identifying patterns and correlations. Checklists ensure that all potential causes are considered. Using these tools collectively provides a robust approach to identifying all possible causes of a problem.
Possible cause identified through many tools as per option D