Science Buddies
Science Buddies: Career Profile: Statistician
Statistics is a fascinating subject and everyone loves to spout them, but a statistician really knows how to use statistics to answer real-life questions and make predictions based on mathematical data. This Science Buddies site lays out...
The Math League
The Math League: Ratio and Proportion
This tutorial provides definitions and examples of ratios and proportions and features comparing ratios and converting rates.