Question

Маша забыла пароль, состоящий из трех цифр, от своего шкафчика. Найти вероятность того что, Маша откроет свой шкафчик с первого раза, если пароли находятся в диапазоне от 000 до 999.

Answer 1

Всего имеем 1000 комбинаций  паэтому вероятность того что она откроет сейф с одного раза 1000/1=0,001=0,1 ‰

Answer 2

Всего имеем 1000 комбинаций возможных паролей, поэтому вероятность отгадать пароль равна 1/1000 = 0.001

Answer 3

Finding the Probability of Opening the Locker on the First Try

To find the probability that Masha will open her locker on the first try, we need to determine the total number of possible passwords and the number of successful outcomes.

The password consists of three digits, ranging from 000 to 999. This means there are a total of 1000 possible passwords (since 999 - 000 + 1 = 1000).

To calculate the probability of opening the locker on the first try, we need to determine the number of successful outcomes. In this case, a successful outcome is when Masha correctly guesses the password on her first attempt.

Since there is only one correct password, the number of successful outcomes is 1.

Therefore, the probability of Masha opening her locker on the first try is 1/1000.

Please note that this calculation assumes that Masha has no prior knowledge or information about the password and is making a random guess.