15 Students A and B have probabilities of failing an exam of 1/2 and 1/5 respectively. The probability of them both failing the examination is 1/10. Determine the probability that at least one of the two students fail. Subject Probability Theory Events Probability Properties Probability Formula Combinatorics Probab. Addition Rule Multiplication Rule Conditional Probability Contingency Tables Tree Diagrams Law of Total Probability Bayes' Theorem Probability Problems 1 Probability Problems 2 Probability Problems 3 Site Math Formulas Word Problems Worksheets Arithmetic Algebra Geometry Trigonometry Analytic Geometry Calculus Statistics