Uncertainty and randomness occur in many aspects of our daily life and having a good knowledge of probability helps us make sense of these uncertainties. Many industries ranging from agriculture to medicine use probability theory. Statistics are the sets of mathematical equations that we used to analyze the things. It keeps us informed about, what is happening in the world around us. Statistics are important because today we live in the information world and much of this information is derived statistically. In addition to basic statistics, this test contains questions on marginal probability , conditional probability , non conditional probability , and occurrence probability. Please note that the figures of “Number Of Questions In Actual Exam” and “Passing Percentage” are just arbitrary with no significance in the context of this test.