mathematics 1.5 / 5 based on 3 ratings ? StatisticsUniversityOther Created by: Melissa LeeCreated on: 20-12-12 16:27 Is P(x=x) the same as f(x)? yes 1 of 4 how do you differentiate f(x) and F(X)? F(X) = ΣP(x=x) = Σf(x), hence it is cumulative. 2 of 4 What does expected mean represent? E[X] ΣxP(x), it is the total number of variable multiplying its probability 3 of 4 CDF to PDF is just an integration step. No, CDF, which is cumulative, is already area under curve. Hence you should differentiate to get to PDF 4 of 4
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