Вопрос на mathoverflow:
http://mathoverflow.net/questions/224814/probability-questions
"The probability that a new drug prevents infection by a certain flu strain is 40%. What is the probability that the drug will be effective in one out of 5 exposed persons? ( can someone please answer in detail and explain every step?)"
Последняя фраза просто запредельно прекрасна :)
"The probability that a new drug prevents infection by a certain flu strain is 40%. What is the probability that the drug will be effective in one out of 5 exposed persons? ( can someone please answer in detail and explain every step?)"
Последняя фраза просто запредельно прекрасна :)