alleryWhy is it usually correct to start bars at zero?
AStarting above zero exaggerates
BZero makes the bars wider
CBars can never be negative
DZero marks the mode value
Answer & Solution
Correct answer: A. Starting above zero exaggerates
1. Bar length should be proportional to the value.
2. Starting at a non-zero value cuts off part of each bar.
3. This makes similar values look deceptively different.
Zero does not change width or show the mode.
_Source: Wikipedia, Bar chart, Usage_
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