Gauging the overall spread and understanding squared deviations from the mathematical center.
Students frequently face "the glass wall" where they can plug numbers into a formula, but they have no idea what the result actually means . They can calculate a Standard Deviation, but they cannot explain why it matters. Traditional textbooks often exacerbate this problem by focusing heavily on derivation and theory before the student has grasped the core concept. Math Tutor DVD - Mastering Statistics- Volume 1
Think of it as hiring a private tutor for $30. A live tutor might cost $50/hour. This DVD gives you 10+ hours of instruction plus worksheets for less than the price of a single tutoring session. Math Tutor DVD - Mastering Statistics- Volume 1
Calculating data proportions for non-normal or skewed data sets. Math Tutor DVD - Mastering Statistics- Volume 1