Traditional Culture Encyclopedia - Hotel franchise - A, what is the probability that two people have stayed in three hotels and just two people have stayed in the same hotel?
A, what is the probability that two people have stayed in three hotels and just two people have stayed in the same hotel?
The three hotels are: 1, No.2 and No.3.
A The probability of staying in any of the three hotels is 1/3.
Similarly, the probability of B staying in any of the three hotels is 1/3.
Then the probability of Party A and Party B staying at the hotel 1 is (1/3) * (1/3) =1/9.
Then the probability of Party A and Party B staying in Hotel II is (1/3) * (1/3) =1/9.
Then the probability of Party A and Party B staying in Hotel III is (1/3) * (1/3) =1/9.
Then the probability of two people staying in the same hotel is the sum of the three: 1/3.
Simply put, you can think like this:
The first, second and third hotels must have a hotel.
Then there is a 1/3 chance that A will live with A.
- Previous article:Which country's brand is Vance Hotel?
- Next article:Bus timetable of Zhuhai Sanzao Airport
- Related articles
- What grade is Xuezhuang No.25 Middle School in Jiantouji Town, Taierzhuang District, Zaozhuang City, Shandong Province?
- Anqing Zunyue Hotel Service Facilities
- Why does the famous Japanese commercial shopping street for the elderly-Nest Duck Street become a shopping paradise for the elderly?
- How far is Haotian International Hotel from Huayang Middle School?
- Traffic Guide of Wan Zilong Hot Spring Hotel in Ningxiang
- How much is it to rent a large led screen for stage lighting and sound?
- How about Kangxinyuan SPA Club?
- What are the specialties of Macao? What are the specialties of Macao?
- 5 personal work summaries of the first half of the year, 1,000 words each
- Regulation of the property market in Shaoxing, Zhejiang has been upgraded again: "grid price control" is launched for the first time, and the sales restriction period is increased to 3 years