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Uploaded on Jun 9, 2009
In order to calculate percentiles, simply turn a fraction into a cross multiplication problem. Calculate the percentile of one half by multiplying it by "x" over 100 with help from a math teacher in this free video series on math help and lessons.
Expert: Jimmy Chang Bio: Jimmy Chang has been a math teacher at St. Pete College for nearly a decade. He has a master's degree in math, and his specialties include calculus, algebra, liberal arts, math and trigonometry. Filmmaker: Christopher Rokosz