STAT 255 Lecture Notes - Lecture 6: University Of Florida

• School: University of Victoria
• Department: Statistics
• Course: STAT 255
• Professor: Michelle Amanda Edwards (P)

Document Summary

P(a u b) = p(a) + p(b) p(a b) P(a u b u c) = p(a) + p(b) + p(c) p(a b) p(a c) p(b c) + p(a b c) 1 = p(s) = p(e1 u e2 u e3 u e4 u e5) 1/20 = p = p(e) = p(marking math assignments) If we want to find out the probability of not marking math assignments then, P(not marking math assignments) = 1 p(e) Now we can find, n(g u e u f) = 160 5 = 155 n(g u e) = n(g) + n(e) n(g e) 149 = 104 + 105 n(g e) So n(g e) = 209 149. = 60 n(g u e u f) = n(g) + n(e) + n(f) n(g e) n(g f) n(e f) + n(g e f) 155 = 104 + 105 + 126 60 90 80 + n(g e f)