Store Checkout Times Histogram

This histogram groups checkout durations from a neighborhood grocery store into equal two-minute ranges. The touching bars show that most transactions finish between four and six minutes, while a smaller right tail takes longer. That shape is more informative than one average because it reveals both the common experience and the less frequent delays. Use a consistent start and end point for timing, such as first scan to payment completion. The bin width should be chosen for the number and spread of observations; two-minute bins make sense here because they are easy to interpret. Investigate long transactions with operational context before deciding whether they represent staffing, payment, basket size, or another cause.