Question

В папке у Димы Гущина лежат четыре пронумерованных цифрами 1, 2, 3, 4 файла с документами, а также заявление на отпуск. Доставая заявление на отпуск, Дмитрий Дмитриевич случайно вытащил и файл с документами. Найдите вероятность того, что он достал файл 3.

Answer 1

Т.к. всего 4 файла, а выбираем один, то
1/4=0.25

Answer 2

Probability of Dmitry finding file 3

To find the probability of Dmitry finding file 3, we need to consider the total number of files in the folder and the number of files that are labeled with the number 3.

According to the information provided, there are four files in the folder, numbered 1, 2, 3, and 4, along with a vacation request.

Since Dmitry accidentally pulled out a file while retrieving the vacation request, we can assume that he randomly selected one of the files.

To calculate the probability of him selecting file 3, we need to determine the ratio of the number of favorable outcomes (selecting file 3) to the total number of possible outcomes (selecting any file).

In this case, the total number of possible outcomes is 4 (since there are four files in the folder).

The number of favorable outcomes is 1 (since there is only one file labeled with the number 3).

Therefore, the probability of Dmitry finding file 3 is 1/4.

Please note that the search results did not provide specific information about Dmitry's folder or the files it contains. The information provided in the question is assumed for the purpose of answering the question.