Program
History and progress transfer
Session summary
Homework — optional, outside the timer
Theory of all steps of the program by blocks. Open a topic to read it.
How a session goes
A session is 10–90 minutes: a warm-up on what you've learned, new steps with short theory and problems, practice. Each problem gives two tries: 100 points on the first, 60 on the second; after the second mistake the correct answer is shown. You move on in the program if 70 % of the problems are solved.
Problems with numbers are generated anew every time a step is repeated. A fractional answer can be entered with a comma, a point or as a fraction: 0,5, 0.5, 1/2. In Practice any topic is available without a timer.
About the course
Conditional probability and Bayes, random variables, expectation and variance, binomial, Poisson, normal and other distributions, the LLN and CLT, estimates, confidence intervals, hypothesis testing and least-squares regression.
Course program: 30 lessons
Conditional probability and Bayes
- Conditional probability
- Law of total probability
- Bayes' formula
- Total probability and Bayes: more
- Checkpoint: conditional probability and Bayes
Discrete random variables
- Random variable and distribution table
- Expected value
- Variance and standard deviation
- Properties of M and D
- Checkpoint: discrete variables
Classic discrete distributions
- Binomial distribution
- Poisson distribution
- Geometric distribution
- Distributions: more
- Checkpoint: discrete distributions
Continuous random variables
- Density and distribution function
- Uniform distribution
- Exponential distribution
- Normal distribution and the three-sigma rule
- Continuous distributions: more
- Checkpoint: continuous variables
Dependence and limit theorems
- Covariance and correlation
- Law of large numbers and CLT
- Checkpoint: dependence and limit theorems
Mathematical statistics
- Samples and point estimates
- Confidence interval
- Hypothesis testing and p-value
- Linear regression: least squares
- Statistics: more
- Checkpoint: statistics