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  2. Risk matrix - Wikipedia

    en.wikipedia.org/wiki/Risk_matrix

    The values on the risk axis were determined by first determining risk impact and risk probability values in a manner identical to completing a 7 x 7 version of the modern risk matrix. [8] A 5 x 4 version of the risk matrix was defined by the US Department of Defense on March 30 1984, in "MIL-STD-882B System Safety Program Requirements". [9] [10 ...

  3. Probabilistic risk assessment - Wikipedia

    en.wikipedia.org/wiki/Probabilistic_risk_assessment

    Probabilistic risk assessment (PRA) is a systematic and comprehensive methodology to evaluate risks associated with a complex engineered technological entity (such as an airliner or a nuclear power plant) or the effects of stressors on the environment (probabilistic environmental risk assessment, or PERA).

  4. Extreme risk - Wikipedia

    en.wikipedia.org/wiki/Extreme_risks

    In such cases a mathematical function may be fitted to the data and extrapolated beyond the range of the data to estimate the probability of extreme events. The results need to be treated with caution because of the possibility that the largest values in the past are unrepresentative, and the possibility that the behavior of the system has changed.

  5. Risk management - Wikipedia

    en.wikipedia.org/wiki/Risk_management

    Example of risk assessment: A NASA model showing areas at high risk from impact for the International Space Station. Risk management is the identification, evaluation, and prioritization of risks, [1] followed by the minimization, monitoring, and control of the impact or probability of those risks occurring. [2]

  6. Risk assessment - Wikipedia

    en.wikipedia.org/wiki/Risk_assessment

    Risk assessment determines possible mishaps, their likelihood and consequences, and the tolerances for such events. [1] The results of this process may be expressed in a quantitative or qualitative fashion. Risk assessment is an inherent part of a broader risk management strategy to help reduce any potential risk-related consequences. [1] [2]

  7. Extreme value theory - Wikipedia

    en.wikipedia.org/wiki/Extreme_value_theory

    As an example, in the univariate case, given a set of observations it is straightforward to find the most extreme event simply by taking the maximum (or minimum) of the observations. However, in the bivariate case, given a set of observations ( x i , y i ) {\displaystyle \ (x_{i},y_{i})\ } , it is not immediately clear how to find the most ...

  8. Statistical risk - Wikipedia

    en.wikipedia.org/wiki/Statistical_risk

    Statistical risk is a quantification of a situation's risk using statistical methods.These methods can be used to estimate a probability distribution for the outcome of a specific variable, or at least one or more key parameters of that distribution, and from that estimated distribution a risk function can be used to obtain a single non-negative number representing a particular conception of ...

  9. Risk score - Wikipedia

    en.wikipedia.org/wiki/Risk_score

    For example, a risk of 9 out of 10 will usually be considered as "high risk", but a risk of 7 out of 10 can be considered either "high risk" or "medium risk" depending on context. The definition of the intervals is on right open-ended intervals but can be equivalently defined using left open-ended intervals ( τ j − 1 , τ j ] {\displaystyle ...

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