probabilistic method

The statistical method of probability is as follows:

List method is called list method, and the probability of some events is analyzed and solved by list. Application of List Method When an experiment is designed with two factors and there are many possible results, in order to list all the possible results, the list method is usually used.

Tree diagram q method to find probability tree diagram method is to list all possible knots of an event with a column tree diagram! My method is called tree diagram method. Using tree-like oU daily chart method to find probability column When an experiment needs to design three or more factors, it is not convenient to use list method to search all possible results in comments.

Calculate probability by tree diagram method. Using Frequency Estimation Probability Using Frequency Estimation Probability Under the same conditions, do a lot of repeated experiments, and gradually stabilize the frequency of a random event to a normal teaching.

The probability of this event can be estimated. In statistical Q, simple test methods are often used to complete probability estimation, rather than complex experiments in actual operation. Such experiments are called big ones.

The role of statistics

1, the role of statistics can make it easier for people to find a certain pattern, and then improve the average sum of the efficiency of analyzing and solving problems/n. Just understand, it is rarely used in reality, and it seems to be used more when encountering hooligans. I'll tell you a joke: average salary.

I won't elaborate on quartile. I don't know the essence of upper and lower quartiles, median and upper and lower quartiles of reading or courses.