دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a sequence of nodes which are either a decision or an uncertainty, and outcomes associated with each mode. The purpose of a decision tree is to define the set of scenarios and the sequence of events that guide the evaluation of risk and return.

the weighted average using probabilities as weights. For decisions involving uncertainty, the concept of expected value provides a rational means for selecting the best course of action and for forcasting portfolio level performance.

n: the interval within which the true value is expected to lie with a stated degree of confidence.

result of impacting one or more potential outcomes from an uncertainty assessment with risk. Risks might take the form of specific losses (i.e., costs),the impact of the failure (failure to achieve a goal),or other representation. Risk weighting is expr

the amount of possible inaccuracy.

a reflection of the measured or perceived possible range of outcomes associated with an event or process. Uncertainty can be expressed as deterministic quantitative value, a qualitative value, or as a probability distribution that combines a range of quan

the process of combining uncertainties, as with a Monte Carlo Simulation, to generate output parameters that are represented by probability distributions. No involvement of risk is implied. Example: multiplying ranges of length and width to arrive at a ra