New PMP Question & Answers with explanation

A team of engineers is reviewing a scatter diagram to determine how the changes in two variables in a new type of automobile tire are related. The closer the points on the diagram are to a diagonal line, _______________.
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A project manager wants to proactively monitor a manufacturing process to determine whether the quality level is within acceptable limits for that process. What tool will help with this?
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You are a project manager working on a project to create high-efficiency electric motors for a company introducing a new electric golf cart. Your company’s president is keenly interested in the project and requests a chart that shows the number of defects by type ordered by their frequency of occurrence. Which type of chart would BEST meet this request?
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The project management team performed activities such as measuring, examining, and verifying to determine whether work and deliverables met requirements and product acceptance criteria. Which of the following choices refers to a different set of activities than the ones just mentioned?
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Which process group corresponds to the "Act" component of the Plan-Do-Check-Act cycle?
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