Renee, Melissa, Xavier, Tamika and David have all been invited to Mr. Akins's birthday party. They arrive randomly and at different times. In how many ways can they arrive? In how many ways can Xavier arrive first and Renee last? Find the probability that Xavier will arrive first and Renee will arrive last.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Renee, Melissa, Xavier, Tamika and David have all been invited to Mr. Akins's birthday party. They arrive randomly and at different times.

In how many ways can they arrive?

In how many ways can Xavier arrive first and Renee last?

Find the probability that Xavier will arrive first and Renee will arrive last.

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