This package widely covers the field that Japanese high school students would learn in their curriculum "Mathematics - C". I planned this package easy to read for everybody who has just the average high school students' knowledge, except for the part pertaining to the various distributions.

Characteristically, this package approximates binomial distribution, sometimes using normal distribution and some other times using Poisson distribution. In these instances, one might feel queer why this approximates in normal distribution while that in Poisson distribution. To these queries, you will see many visual exercises using graphs and simulations adequately prepared for your easier understanding.

Statistics

1 Basics - probability and dimension

2 From probability to statistics

3Binomial approximation

4 Statistical inference - application for practical problems

I prepared the package easy to understand, if you read it in its order and steadily. There might, however, be some parts where you need a certain background. In such cases, you can refer to the links prepared there in each chapter. I also prepared remarks in some rare cases, where backgrounds beyond the level of high school are required. In such cases, you don*t have to beat your brain out. At any rate, it is important to continue to read at ease, through to the end.