课程: Machine Learning Foundations: Probability

今天就学习课程吧！

今天就开通帐号，24,700 门业界名师课程任您挑！

Conditional probability

Conditional probability - Python教程

课程: Machine Learning Foundations: Probability

开始一个月试用 购买团队方案

Conditional probability

“

- [Instructor] A type of probability that occurs very often is a conditional probability, but in many cases people find it hard to understand. It is the probability of event A occurring given event B has occurred and can be represented as P of A given B. Let's imagine a study that claims that 75% of people sick of some disease drink soft drinks. At first, it sounds like you should abandon drinking soft drinks if you don't want to get sick with the disease. But in fact, only 0.3% of the population actually gets the disease. So are soft drinks the problem, if we know that 60% of people drink soft drinks every day? As we can see, the probability of having the disease given you drink soft drinks is different from the probability of drinking soft drinks given you have the disease. So the direction of condition is important. So a couple of people drinking soft drinks have the disease, but many people that have the disease drink…

内容