Box plot
A box plot sums up a variable in five numbers: the minimum, the first quartile, the median, the third quartile and the maximum. The box runs from the first to the third quartile and holds the middle half of the data.
Select any words here to ask your Maestro about them.
These five boxes are the same. What do you think the data under them looks like?
The thick line inside the box is the median: half the data sits above it and half below. The whiskers reach the farthest values; many tools cut them at 1.5 times the box's height and draw whatever lies beyond as single dots.
It compares groups at a glance: which group sits higher, which varies more, where the odd values are. What it leaves out is the shape: two humps, gaps or very few rows all fit the same box. When the shape matters, draw the dots or a violin next to it.
How it's used
Ticket per order · three branches
When to look closer
How many values hold up each box?
Think it over before you look.
Where does the median land?
Think it over before you look.
Ask your Maestro about Box plot
It answers from a free course page that uses this word, the way it answers while you study. Select any words above to ask about them.
You: What does "Box plot" mean, in plain words?
Your Maestro: A box plot sums up a variable in five numbers: the minimum, the first quartile, the median, the third quartile and the maximum. The box runs from the first to the third quartile and holds the middle half of the data. Want to see it in a case from this page?
Asking about: Answers from the page "¿Qué esconde un diagrama de caja?"
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