Теория вероятностей #8: Случайные величины в двух словах

In this video, we'll briefly discuss random variables. What are discrete and continuous random variables? How do we determine the probabilities of random variables? What is the distribution of a random variable? How do the mean, variance, median, and other variables characterize a distribution? You'll find answers to these and other questions in the video. 0:00 Start 2:27 Motivating Example: GDP Growth 15:19 Random Variable as a Function 22:15 Discrete and Continuous Random Variables 26:06 Probability Distributions of Random Variables 28:38 Distribution Function 32:57 Continuous Random Variables 41:28 Probability Density 44:27 Characteristics of Random Variables 46:51 Mean, Median, and Modes 50:45 Moments, Variance, and Standard Deviation 54:01 Example with GDP Growth: Mean and Standard Deviation Deviation Subscribe to our Telegram channel for additional materials, information about new courses, news from the world of mathematics and data science, and much more: https://t.me/getsomemath Contacts: http://apershin.com