HEATKEYS

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

WebMath is designed to help you solve your math problems. Composed of forms to fill-in and then returns analysis of a problem and, when possible, provides a step-by-step solution. Covers arithmetic, algebra, geometry, calculus and statistics.

Study math online for free. With Mathplanet you can get math tutoring online and help with Pre Algebra, Algebra 1, Algebra 2 and Geometry. Get SAT and ACT worksheets for math.

The Internet

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MedCalc statistical software for biomedical research, including ROC curve analysis, method comparison and quality control tools. Free trial available.

The Office of Public Health Practice at the University of Michigan School of Public Health supports activities between public health students, faculty and practitioners in governmental agencies and community-based organizations through applied resear...

Calculators online for finance, math, algebra, trigonometry, fractions, physics and time. Use an online calculator, search or suggest a new calculator that we can build for free online use. Conversions and calculators to use online for free. Formerl...

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The Math Forum is the comprehensive resource for math education on the Internet. Some features include a K-12 math expert help service, an extensive database of math sites, online resources for teaching and learning math, plus much more.

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Web site for statistical computation; probability; linear correlation and regression; chi-square; t-procedures; t-tests; analysis of variance; ANOVA; analysis of covariance; ANCOVA; parametric; nonparametric; binomial; normal distribution; Poisson di...