A probabilistic system is one where events and occurrences cannot be predicted with precise accuracy. It is contrasted by a deterministic system in which all events can be predicted with certainty.Know More
In a probabilistic system, unlike in a deterministic system, what has just occurred is not always an accurate predictor of what will transpire next. The weather, for example, is a probabilistic system, in that future events can only be imperfectly predicted.
The theory of probabilistic systems by extension leads to probabilistic analysis and forecasting. A probabilistic system must be analyzed according to the various possible outcomes and their relative probability of occurrence.Learn more about Statistics
The formula to find a raw score is x = x_bar + z * s. X represents the raw score, x_bar is the mean, z is the z-score and s is the standard deviation. To determine the raw score, these values must be known.Full Answer >
Parametric testing is defined by making one or more assumptions about the population's properties. The most common assumptions to make are that the population will be normally distributed or have data based on an equal-interval scale.Full Answer >
To calculate geometric mean for a set of numbers, multiply the numbers together, and take the nth root of this product. Only calculate the geometric mean when all of the numbers in a set are nonzero and positive.Full Answer >
A person uses nPr when the order matters, and they use nCr when order does not matter or for combinations. Someone would use these functions when performing probability math problems.Full Answer >