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Investigating distribution & standard deviation questions

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A. When investigating the distribution of a data set, which is more effective: a frequency distribution or a histogram? Why?

b. A quality control engineer redesigns repair procedures so that the standard deviation of the repair times is reduced. Does this imply that the repairs are being done in less time? Why or why not?

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This solution involves the investigation of a data set and analysis of standard deviation.

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Investigating distribution & standard deviation question
Q9)
a. When investigating the distribution of a data set, which is more effective: a frequency distribution or a histogram? Why?

b. A quality control engineer redesigns repair procedures so that the standard deviation of the repair times is reduced. Does this imply that the repairs ...

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