ITPEC FE Morning April 2021 Question 76
ITPEC FE Morning April 2021 — Question 76 of 80
A Pareto chart is a combined graph that uses bars in descending order to show individual values and a cumulative line graph to show the running total as a percentage. It is based on the Pareto principle (80/20 rule), helping identify the most significant factors in a dataset.
Why not others:
- (a) Control chart — a line graph with upper/lower control limits (UCL/LCL) used to monitor process stability over time, not a bar+line combo
- (b) Histogram — a bar chart showing frequency distribution of data; no cumulative line and bars are not sorted by value
- (d) Scatter diagram — a plot of dots on an X-Y plane showing correlation between two variables; no bars or cumulative line
Key rule: Bars in descending order + cumulative line = Pareto chart.
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