MATH 425 Midterm: Midterm 1
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Electronic devices brought into the room should remain in a closed bag on the oor, and penalties will be applied if this rule is violated. For example, no cell phone usage for the duration of the exam, please! 1: in a group of students, 70% are democrat and 30% republican. Of the democrats, 60% support introduction of a ban on assault ri es. 30% of the republicans are in favor of such a ban. If a randomly selected student opposes a ban, what is the chance that the student is. 3: for three events e, f and g you know the following facts: P (e) = 0. 6, p (f ) = 0. 3, p (e f ) = 0. 1, p (e g) = 0. 3, p (f g) = 0. 2. Hint: it may help you to set x = p (e f g) and y = p (g e c f c).
