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  2. 1 in 60 rule - Wikipedia

    en.wikipedia.org/wiki/1_in_60_rule

    This rule is also used by air traffic controllers to quickly determine how much to turn an aircraft for separation purposes. The rule is based on the small-angle approximation (which states that, for small angles, sin θ ≈ θ, where θ is in radians), along with the fact that one radian (which is about 57.3°) is close to 60°. In reality a 1 ...

  3. Mathematical fallacy - Wikipedia

    en.wikipedia.org/wiki/Mathematical_fallacy

    In mathematics, certain kinds of mistaken proof are often exhibited, and sometimes collected, as illustrations of a concept called mathematical fallacy.There is a distinction between a simple mistake and a mathematical fallacy in a proof, in that a mistake in a proof leads to an invalid proof while in the best-known examples of mathematical fallacies there is some element of concealment or ...

  4. Hand formula - Wikipedia

    en.wikipedia.org/wiki/Hand_formula

    In the United States, the Hand formula, also known as the Hand rule, calculus of negligence, or BPL formula, is a conceptual formula created by Judge Learned Hand which describes a process for determining whether a legal duty of care has been breached (see negligence). The original description of the calculus was in United States v.

  5. Issue 1: How a 60% rule would have affected previous ... - AOL

    www.aol.com/finance/issue-1-60-rule-affected...

    Jul. 7—Issue 1, up for a statewide vote on Aug. 8, proposes making it harder to pass a constitutional amendment and making it harder for citizen-initiated amendments to get on the ballot in the ...

  6. How to budget with the 50/30/20 rule: A simple, effective ...

    www.aol.com/finance/50-30-20-budgeting-rule...

    60/20/20 — 60% for necessary living expenses, 20% for savings and 20% for anything else 80/20 — 80% for spending and 20% for savings Does the 50/30/20 rule include 401(k) contributions?

  7. Taking stock of bonds: Does the 60/40 rule still have a role ...

    www.aol.com/taking-stock-bonds-does-60-100552790...

    And investors who follow the 60/40 rule are doing pretty well. In 2022, by Jablonski’s calculations, the 60/40 portfolio lost 15.8%. But in 2023, the same portfolio rose by 17.7%.

  8. Bayes error rate - Wikipedia

    en.wikipedia.org/wiki/Bayes_error_rate

    A plug-in rule uses an estimate of the posterior probability to form a classification rule. Given an estimate ~, the excess Bayes ...

  9. Duckworth–Lewis–Stern method - Wikipedia

    en.wikipedia.org/wiki/Duckworth–Lewis–Stern...

    A rain delay at The Oval, England Scoreboard at Trent Bridge indicating that bad light has stopped play.. The Duckworth–Lewis–Stern method (DLS method or DLS) previously known as the Duckworth–Lewis method (D/L) is a mathematical formulation designed to calculate the target score (number of runs needed to win) for the team batting second in a limited overs cricket match interrupted by ...