The literature mentions different methods that take account of risk and uncertainty associated with a project appraisal when making decisions. Such methods include but are not limited to probability analysis, sensitively analysis, simulations models. It has been claimed by a student who was doing a research that these various methods are well known and implemented by investment managers in various industries when appraising new projects. REQUIREMENT: Discuss the above statement and claim with the help of reliable evidences available in the literature and comment on the most common risk and uncertainty assessment method in practice. • evidently discussed the student's claim in relation to the practical use of such methods in various industries. • demonstrates critical analytical skills in concluding the most common method in practice.