Question

4. Менеджер по персоналу рассматривает кандидатуры 7 человек, подавших заявления о приеме на работу на должность бухгалтера. Сколько существует способов приглашения кандидатов на собеседование в случайном порядке?

Answer 1

Находишь через факториал:
7!=5040

Answer 2

Calculation of the Number of Ways to Invite Candidates for an Interview

To calculate the number of ways to invite candidates for an interview in a random order, we can use the concept of permutations.

In this case, the manager is considering 7 candidates for the position of an accountant. The order in which the candidates are invited for an interview is important because it determines the sequence of interviews.

The formula to calculate the number of permutations is:

nPr = n! / (n - r)!

Where: - n is the total number of candidates (7 in this case) - r is the number of candidates to be invited for an interview (also 7 in this case)

Let's calculate the number of ways to invite candidates for an interview:

7P7 = 7! / (7 - 7)! = 7! / 0! = 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040

Therefore, there are 5040 different ways to invite the 7 candidates for an interview in a random order.