Ask Question
15 March, 16:17

Xerxes, Murray, Norah, Stav, Zeke, Cam, and Georgia are invited to a dinner party. They arrive in a random order and all arrive at different times. What is the probability that Xeres arrives first?

Answer in decimal form. Round to 3 decimal places as needed.

+3
Answers (1)
  1. 15 March, 19:48
    0
    0.143

    Step-by-step explanation:

    From counting principle, we can say that:

    There are 7! ways of the 7 people to arrive first. Any one of them can come first. But, what is the probability that Xerxes with arrive first?

    We take that Xerxes is the first one to arrive, then from the 7 - 1 = 6 remaining people, they can arrive in 6! ways. So

    Probability Xerxes arrives first = 6!/7! = 0.1429

    Rounding to 3 decimal places, it will be:

    Probability Xerxes arrives first = 0.143
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Xerxes, Murray, Norah, Stav, Zeke, Cam, and Georgia are invited to a dinner party. They arrive in a random order and all arrive at ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers