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Unformatted text preview: cor(data[,2],data[,3]*2) d) It changes its sign to become negative. cor(data[,2],data[,3]*2) 5) Do Chapter 6 textbook problem #2 (parts a,b,c,d only) on page 404. a) b) No, confidence is not a symmetric measure. c) d) 6) Do Chapter 6 textbook problem #3 (parts b,c,d only) on page 405. b) c) d) Yes, it is possible. Many such examples can be constructed. 7) Do Chapter 6 textbook problem #6 (parts d,e only) on page 406. d) s({Bread, Butter}) = 5/10 is the largest support using for an itemset of size 2 or larger. e) from the ICE we saw c({Bread} → {Butter}) =1 = c({Butter} → {Bread}) also, the following all work c({Milk} → {Bread}) =.6 = c({Bread} → {Milk}) c({Milk} → {Butter}) =.6 = c({Butter} → {Milk}) c({Beer} → {Cookies}) =.5 = c({Cookies} → {Beer}) c({Beer} → {Bread}) =0 = c({Bread} → {Beer}) c({Beer} → {Butter}) =0 = c({Butter} → {Beer}...
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This note was uploaded on 08/20/2011 for the course STATS 202 taught by Professor Taylor during the Summer '09 term at Stanford.
 Summer '09
 TAYLOR

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