Examlex
In a math course of 12 students,the instructor decides that he would like 4 students to go to the board simultaneously to present 4 different problems to the class.How many ways can he choose the 4 students?
Instances
Specific examples or occurrences of a particular event or situation.
African Languages
The languages native to the African continent, which comprise several language families and thousands of languages and dialects.
Disconfirming Instances
Observations or examples that contradict the predictions or implications of a hypothesis or theory.
Professional Linguist
An expert who studies language and its structure, including the study of grammar, syntax, phonetics, and semantics.
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