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  2. Literacy - Wikipedia

    en.wikipedia.org/wiki/Literacy

    Its youth literacy rate stands at 98%, computer literacy rate at 35%, and primary school enrollment rate at over 99%. An education system which dictates 9 years of compulsory schooling for every child is in place. The free education system established in 1945, is a result of the initiative of C. W. W. Kannangara and A. Ratnayake.

  3. Standard deviation - Wikipedia

    en.wikipedia.org/wiki/Standard_deviation

    In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range.

  4. Quality of life - Wikipedia

    en.wikipedia.org/wiki/Quality_of_life

    Crimes. Some crimes against property (e.g., graffiti and vandalism) and some "victimless crimes" have been referred to as "quality-of-life crimes."American sociologist James Q. Wilson encapsulated this argument as the broken windows theory, which asserts that relatively minor problems left unattended (such as litter, graffiti, or public urination by homeless individuals) send a subliminal ...

  5. Reading - Wikipedia

    en.wikipedia.org/wiki/Reading

    Reading is the process of taking in the sense or meaning of letters, symbols, etc., especially by sight or touch.. For educators and researchers, reading is a multifaceted process involving such areas as word recognition, orthography (spelling), alphabetics, phonics, phonemic awareness, vocabulary, comprehension, fluency, and motivation.

  6. Handedness - Wikipedia

    en.wikipedia.org/wiki/Handedness

    In human biology, handedness is an individual's preferential use of one hand, known as the dominant hand, due to it being stronger, faster or better in dexterity.The other hand, comparatively often the weaker, less dextrous or simply less subjectively preferred, is called the non-dominant hand.

  7. Receiver operating characteristic - Wikipedia

    en.wikipedia.org/wiki/Receiver_operating...

    The transformation function is the quantile function of the normal distribution, i.e., the inverse of the cumulative normal distribution. It is, in fact, the same transformation as zROC, below, except that the complement of the hit rate, the miss rate or false negative rate, is used. This alternative spends more graph area on the region of ...

  8. Poverty - Wikipedia

    en.wikipedia.org/wiki/Poverty

    Poverty is the state of having few material possessions or little income.Poverty can have diverse social, economic, and political causes and effects. When evaluating poverty in statistics or economics there are two main measures: absolute poverty compares income against the amount needed to meet basic personal needs, such as food, clothing, and shelter; relative poverty measures when a person ...

  9. Vocabulary - Wikipedia

    en.wikipedia.org/wiki/Vocabulary

    Definition and usage. Vocabulary is commonly defined as "all the words known and used by a particular person". Productive and receptive knowledge. The first major change distinction that must be made when evaluating word knowledge is whether the knowledge is productive (also called achieve or active) or receptive (also called receive or passive); even within those opposing categories, there is ...