Question

Помогите, пожалуйста. На конференцию приехало 75 человек, по одному с каждой страны. Доклады принимаются на протяжении 5 дней. В первый день выступает 27 чел., а остальные распределены поровну между оставшимися днями. Найдите вероятность того, что приехавший из России, выступит на третий день.

Answer 1

1)75-27=48(человек)-на 4 дня.
2)48:4=12(человек)каждый следующий день
3)12/75=0,16-вероятность того что россиянин выступит на третий день.

Ответ:вероятность того что россиянин выступит на третий день 0,16.

Answer 2

Всего 75 человек.
75 - 27 = 48 человек на 4 дня.
48/4 = 12 человек в остальные дни.
12/75 = 0,16 - вероятность того, что Россиянин выступит на третий день

Answer 3

Problem Analysis

We are given that 75 people have arrived for a conference, with one person from each country. The presentations will take place over 5 days, with 27 people presenting on the first day and the remaining people evenly distributed over the remaining days. We need to find the probability that the person from Russia will present on the third day.

Solution

To find the probability, we need to determine the total number of people presenting on the third day and the total number of people attending the conference.

The total number of people presenting on the third day can be calculated by subtracting the number of people presenting on the first day from the total number of people attending the conference. Since 27 people are presenting on the first day, the remaining days will have 75 - 27 = 48 people presenting.

The total number of people attending the conference is given as 75.

To find the probability, we divide the number of people presenting on the third day by the total number of people attending the conference.

Let's calculate the probability.

Calculation

Total number of people presenting on the third day = 48 Total number of people attending the conference = 75

Probability = (Number of people presenting on the third day) / (Total number of people attending the conference)

Probability = 48 / 75

Answer

The probability that the person from Russia will present on the third day is 48/75.

Please note that the above calculation assumes that the person from Russia is equally likely to present on any given day. If there are any specific constraints or information regarding the distribution of presentations, please provide them for a more accurate calculation.