The purpose of this paper is the researching methods and modeling and stimulation techniques that are used for the managerial risk analysis in marketing activities. The working methods used in the preparation of the article were analysis and deduction. After the researched materials the following results reached were: The present article will analyze the incertitude quantification and evaluation and the market risk that need the use of probabilities. For this purpose the risk analysis is used, that means a group of methods for the confidence degree quantification that can characterize an appreciation concerning the sales, costs and benefits projects. As the major conclusion of this work, we might underline the following: the incertitude and risk analysis permit and substantiate a decision adoption, because it uses various methods to foresee the consequences, actions in various situations.