Consider these itemsets:
(hat, scarf, coat)
(hat, scarf, coat, gloves)
(hat, scarf, gloves)
(hat, gloves)
(scarf, coat, gloves)
What is the confidence of the rule (hat, scarf) -> gloves?
A.
66%
B.
40%
C.
50%
D.
60%
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50%
Conf[(H,S) -> G] = Number of times (H,S) occur / Number of times (H,S,G) occurs
2/3
0.66
66%
0
0