Basic Business Course in Statistics or simply BBCS includes theoretical and applied topics in statistics that are of interest to students in all educational fields, such as business, economics, finance, management and even IT. The first part of this book provides students with good knowledge about descriptive statistics, measures of dispersion, basic rules of probabilities, special probability distribution such as binomial distribution, hypergeometric distribution, multinomial distribution, Poisson distribution, normal distribution, uniform distribution, and exponential distribution. The second part of this book provides students with an excellent feedback to choose the convenient hypothesis test and estimation for population parameters and population variances. It also provides them with essential techniques to use correlation and linear regression analysis. In both parts there exist significant places where technology has been used, especially the use of Excel and PHStat software. The first part of this book is designed for Sophomore students while the second part is designed for Junior students. Our guiding philosophy led us to build on this foundation in such a way that pupils acquire fundamental skills in higher business and higher statistics so that they are ready to make a decision with a least risk.