Traditional Culture Encyclopedia - Weather forecast - The weather forecast accuracy of a weather station is 80.
The weather forecast accuracy of a weather station is 80.
(4/5)*(4/5)*(4/5)*( 1/5)*( 1/5)* C(5,2)= 128/725
Explain that the first accurate probability is 4/5, the second and third accurate probability is 4/5, the fourth and fifth inaccurate probability is 1/5, and then the third accurate and second inaccurate arrangement number is c (5,2) or c (5,3), so multiply this number.
- Related articles
- Know the weather and guess the answer. The last two words of animation are mobilization.
- I don't know if it's true. During the typhoon, there were rumors of power outage on the Internet. The power outage lasted for a long time and drinking water was snapped up.
- Weather in Tongren Yunshe
- Is the girl born in Xiaoxue a noble of fate promoted to the end of luck?
- I grew up with the book club.
- The rationalization proposal for smog prevention requires six points.
- Poems about younger brothers
- Introduction to three-day tour in Xiamen
- How to use voice to query encyclopedia
- Are there any interesting places around here?