Question: What is the difference between Cpk and Ppk as process capability indicators? A Cpk is used for variable data, while Ppk is used for attribute

What is the difference between Cpk and Ppk as process capability indicators?
A Cpk is used for variable data, while Ppk is used for attribute data.
B Cpk represents the actual performance of a process, while Ppk measures the potential capability of a process.
C Cpk represents the potential capability of a process, while Ppk measures the actual performance of a process.
D Cpk does not assume the process is in statistical control, while Ppk does.

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