What is the probability of a random event?

The probability of any random event is defined as the ratio of the number of cases K corresponding to the onset of the expected event to the number of possible cases N, if all cases are possible:
P = K / N

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.