If you are studying statistics in math or would like to know more about this subject then you can find in this site what you are looking for. Here you can find an online statistics textbook where you can learn about these from the comfort of your own home.
In the Introduction to Statistics section of this site you can read about descriptive statistics, inferential statistics, variables, parameters, statistics, summation notation, measurement scales and sin exercises as well. In the Describing Univariate Data you can read about the central tendency, the spread, shape, find graphs and exercises as well. In the Describing Bivariate Data section you will find information about scatterplots, an introduction to Pearson’s Correlation, examples and much more. In the Introduction to Probability section of this site you can read about simple probability, conditional probability, the binomial distribution, subjective probability and much more on this subject as well. So, if you are into mathematics, this site can be very useful to you since you can find all of this information an much more. 
