The request
“Create a histogram of 102 grocery checkout transactions using 2-minute bins from 0 to 12 minutes with frequencies 8, 24, 37, 21, 9, and 3.”
Then trySplit the 4–6 minute bin into two bins.Add a target line at six minutes.
What is in this drawing
Read the decisions behind it.
01Measure
Use complete transaction duration in minutes.
02Bins
Use equal two-minute ranges.
03Tail
Review the small number of transactions above eight minutes.
Use this histogram to see the shape of a checkout-time distribution before changing staffing or lane design.
More like this
Other examples in this family.
FAQ
Common questions
What does a histogram show?
It shows how often numeric observations fall within consecutive value ranges, called bins.
Why do histogram bars touch?
The ranges represent continuous numeric intervals, so adjacent bins have no category gap.
What is a right tail?
It is a smaller set of observations extending toward higher values on the right side of a distribution.