A Pareto chart is best described as:

a. a graphical record of a process variable measured over time.
b. a statistical tool used to determine and control process variations.
c. a simple bar graph with classifications along the horizontal and vertical axis. The vertical axis is usually the number of occurrences, cost or time. The horizontal axis orders the bars from the most frequent to the least frequent.
d. a picture of the activities that take place in a process.


Answer: C

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