ITPEC FE Morning April 2023 Question 78
ITPEC FE Morning April 2023 — Question 78 of 80
Scatter Diagram — identify a quality control tool by its description.
The question describes a graph where two different attributes are set on vertical and horizontal axes, and measured values are plotted as points. This is a scatter diagram — it visualizes the correlation between two variables.
Why not others:
- (a) Control chart — tracks process stability over time, with UCL/LCL boundaries
- (b) Histogram — shows frequency distribution of a single variable using bars
- (c) Pareto chart — bars sorted by descending frequency + cumulative line (80/20 rule)
Key rule: Two axes, two variables, plotted points → scatter diagram.
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