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  2. Lifeguard - Wikipedia

    en.wikipedia.org/wiki/Lifeguard

    A lifeguard is a rescuer who supervises the safety and rescue of swimmers, surfers, and other water sports participants such as in a swimming pool, water park, beach, spa, river and lake. Lifeguards are trained in swimming and CPR / AED first aid, certified in water rescue using a variety of aids and equipment depending on requirements of their ...

  3. Pareto principle - Wikipedia

    en.wikipedia.org/wiki/Pareto_principle

    The Pareto principle may apply to fundraising, i.e. 20% of the donors contributing towards 80% of the total. The Pareto principle (also known as the 80/20 rule, the law of the vital few and the principle of factor sparsity [1] [2]) states that for many outcomes, roughly 80% of consequences come from 20% of causes (the "vital few").

  4. One in ten rule - Wikipedia

    en.wikipedia.org/wiki/One_in_ten_rule

    One in ten rule. In statistics, the one in ten rule is a rule of thumb for how many predictor parameters can be estimated from data when doing regression analysis (in particular proportional hazards models in survival analysis and logistic regression) while keeping the risk of overfitting and finding spurious correlations low.

  5. George Freeth - Wikipedia

    en.wikipedia.org/wiki/George_Freeth

    George Douglas Freeth Jr. (November 8, 1883 – April 7, 1919) was an American lifeguard, surfer, and swimming instructor of English and Native Hawaiian descent.Freeth popularized surfing in Southern California when he arrived in Los Angeles in 1907 and built the foundation for the state's professional lifeguard service.

  6. National Pool Lifeguard Qualification - Wikipedia

    en.wikipedia.org/wiki/National_Pool_Lifeguard...

    National Pool Lifeguard Qualification. The RLSS UK National Pool Lifeguard Qualification ( NPLQ) is the standard qualification providing training to over 95% of lifeguards in the United Kingdom and Ireland. The NPLQ can also be delivered in other countries where trainers and training centres meet RLSS UK standards.

  7. The Power of 10: Rules for Developing Safety-Critical Code

    en.wikipedia.org/wiki/The_Power_of_10:_Rules_for...

    The ten rules are: [1] Avoid complex flow constructs, such as goto and recursion. All loops must have fixed bounds. This prevents runaway code. Avoid heap memory allocation. Restrict functions to a single printed page. Use a minimum of two runtime assertions per function. Restrict the scope of data to the smallest possible.

  8. 10-20 system - Wikipedia

    en.wikipedia.org/wiki/10-20_system

    Download QR code; Wikidata item; Print/export Download as PDF; Printable version; 10-20 system may refer to: 10-20 system (swimming safety), a technique ...

  9. 10–20 system (EEG) - Wikipedia

    en.wikipedia.org/wiki/10–20_system_(EEG)

    1020 system (EEG) The 1020 system or International 1020 system is an internationally recognized method to describe and apply the location of scalp electrodes in the context of an EEG exam, polysomnograph sleep study, or voluntary lab research. This method was developed to maintain standardized testing methods ensuring that a subject's ...

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