Real numbers, wrong idea
A chart can get every number right and still mislead you, just by cutting the axis and picking dates cleverly.
CUT AXIS
Axis not starting at zero
A common trick is a vertical axis that doesn't start at zero, so a small gap looks like it grew several times over.
BASE NUMBER
Double of what
"Doubled" sounds scary, but going from one to two people in ten thousand is still very few.
ASK AI
Let AI read the chart
Screenshot the chart, send it to a chatbot, and ask it to check the axes, dates and data source, then describe the true proportions.
This article is based on the video Misleading charts from the Mark học AI channel. Watch the video (in Vietnamese) to see the animations.