Stacked Haircut: 5 Stylish Ways to Wear the Look. Stacked hairstyles are the look of the season. Scroll through this edit of short styles to get inspired. By now, youâve probably noticed that #shorthair is trending in a major way.
What is 'Sampling'. Sampling is a process used in statistical analysis in which a predetermined number of observations are taken from a larger population. The methodology used to sample from a larger population depends on the type of analysis being performed, but may include simple random sampling or systematic sampling.
What is Split Testing? Optimizely: Split Testing Simplified. Split testing (also referred to as A/B testing or multivariate testing) is a method of conducting controlled, randomized experiments with the goal of improving a website metric, such as clicks, form completions, or purchases.