Lesson: Complementary Events Holt Mathematics • Course 1 • Glencoe • Geometry • Math in Focus • Singapore Math • Course 2 • Volume B • Common Core • Prentice Hall • Geometry • Common Core • Prentice Hall • Algebra 2 • Common Core • Prentice Hall • Algebra 1 • Common Core • Go Math! • Grade 7 • Middle School • Common CoreMathematics
In this lesson, we will learn how to find the probability of complementary events.
Sample Question Videos
A bag contains 6 red balls, 8 yellow ones, and 4 black ones. If a ball is randomly selected, find the probability of it being NEITHER black NOR yellow.
A class in a school contains 38 students. At the end of the school year, 28 of the students passed mathematics, 32 passed science, and 26 passed both science and mathematics. If a student is chosen at random from the class, what is the probability that they failed science?
If the probability of an event happening is , what is the probability of the event not happening?