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  2. Less-than sign - Wikipedia

    en.wikipedia.org/wiki/Less-than_sign

    The less-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the left, <, has been found in documents dated as far back as the 1560s.

  3. Inequality (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Inequality_(mathematics)

    The feasible regions of linear programming are defined by a set of inequalities.. In mathematics, an inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions. [1]

  4. Secretariat of Public Education - Wikipedia

    en.wikipedia.org/wiki/Secretariat_of_Public...

    Mexican flag and banners Murals by Diego Rivera. In Mexico, the Secretariat of Public Education (in Spanish Secretaría de Educación Pública, SEP) is a federal government authority with cabinet representation and the responsibility for overseeing the development and implementation of national educational policy and school standards.

  5. Markov's inequality - Wikipedia

    en.wikipedia.org/wiki/Markov's_inequality

    If X is a nonnegative random variable and a > 0, and U is a uniformly distributed random variable on [,] that is independent of X, then [4] ⁡ ⁡ (). Since U is almost surely smaller than one, this bound is strictly stronger than Markov's inequality.