# Probability

Not what you're looking for?

An elevator has 4 passengers and 8 floors. Find the probability that no 2 passengers get off on the same floor considering that it is equally likely that a person will get off at any floor.

##### Purchase this Solution

##### Solution Summary

This shows how to complete a probability question for an elevator situation.

##### Solution Preview

From the condition, we know that on each floor at most one passenger gets off. That is to choose 4 positions out of a total of 8. We have 8!/(4!4!)= 70 different choices.

On the other hand, let's compute all the possibilities.

We have 8 floors, each floor can have at ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

##### Probability Quiz

Some questions on probability

##### Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

##### Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

##### Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.