Histogram
A distribution is a high-level way of describing by how much experiences are divided over a good, moderate and poor bucket.
A histogram is offering you a more detailed visualization of where experiences are ending up.
Histograms in RUMvision
Within Real User Monitoring solutions, you will often be able to specify bucket sizes to adjust a histogram to your preferences. Below is an example from the technical panel of RUMvision dashboarding: