Question

на экзамене 60 билетов, Олег Не выучил 12 из них. Найдите вероятность того, что ему попадется выученный билет

Answer 1

48/60=4/5.................

Answer 2

Calculating the Probability of Oleg Getting a Learned Ticket

To calculate the probability of Oleg getting a learned ticket, we can use the following formula:

Probability = (Number of favorable outcomes) / (Total number of possible outcomes)

In this case, the number of favorable outcomes is the number of tickets Oleg has learned, and the total number of possible outcomes is the total number of tickets in the exam.

Calculation

Given: - Total number of tickets in the exam = 60 - Number of tickets Oleg has not learned = 12

We can calculate the number of tickets Oleg has learned: Number of tickets Oleg has learned = Total number of tickets - Number of tickets not learned Number of tickets Oleg has learned = 60 - 12 = 48

Now, we can calculate the probability of Oleg getting a learned ticket: Probability = Number of tickets Oleg has learned / Total number of tickets Probability = 48 / 60 Probability = 0.8

Therefore, the probability of Oleg getting a learned ticket is 0.8 or 80%.

Conclusion

The probability of Oleg getting a learned ticket in the exam is 80%.