Often survival times are not observed more precisely than the interval (for instance, a day) within which the event occurred. Survival data of this form are known as grouped or interval-censored data.

Scott Diddams and Tom O'Brian of the Time and Frequency Division of the National Institute of Standards and Technology, explain. Just how fast an event is depends somewhat on your point of view. In ...

A fundamental characteristic of time series data is how frequently the observations are spaced in time. How often the observations of a time series occur is called the sampling frequency or the ...

There’s a lot of talk in the exercise world about high intensity interval training (HIIT) lately, which is exactly what it sounds like — alternating episodes of exercise with periods of less intensive ...

How to create a video that shows processes that normally wouldn’t be visible in real time, like flowers opening or stars moving across the sky. These days just about every camera above the most basic ...

Until very recently, the question of how the brain works to enable the sense of time passing was an enigma. For many psychological functions researchers agree on basic facts related to how we perceive ...