ITPEC IP October 2019 Question 21
ITPEC IP October 2019 — Question 21 of 100
Narrowing the vertical-axis range to 1,000,000–1,300,000 yen makes the month-to-month changes visibly larger without changing the chart frame. All values lie within that interval, so the plotted line uses much more of the available height.
Answer (b)
Why not others:
- changing units to thousands leaves the same proportional 0–1,500,000 range
- switching to bars does not solve compression caused by the broad axis
- an average line adds a reference but does not enlarge the variation
Key rule: To emphasize small changes within a narrow band, reduce the displayed axis range while clearly labeling the nonzero baseline to avoid misleading readers.
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