Main Profile

At A Glance

Perms & Combs: Combinations Part I This 53 minute perms & combs lesson is all about combinations and the difference between a combination and a permutation. It really should be called a permutation lock rather than a combination lock! This lesson will show you how to use: - the formula for a permutation - the formula for a combination and to answer questions on: - numbers in lotteries - letters in a word - people on committees - sums of money - selections from objects - cards in a standard deck Sample question: A student council has 10 members, 6 girls & 4 boys. A committee of 6 is chosen to plan for a dance In how many ways can this be done if Mary (one of the 6 girls) must be on the committee? This lesson contains explanations of the concepts and 16 sample questions with step by step solutions plus 6 interactive review questions with solutions. Lessons that will help you with the fundamentals of this lesson include: - 230 Solving Quadratic Equations by Factoring ( - 505 Factorial Notation & Linear Permutations (
Length: 04:38


Questions about Perms & Combs: Combinations Part I

Want more info about Perms & Combs: Combinations Part I? Get free advice from education experts and Noodle community members.

  • Answer

Ask a New Question