Suppose we are given the eight "market baskets" of Fig. 22.3.

a) As a percentage of the baskets, what is the support of the set {beer, juice}?

b) What is the support of the itemset {coke, pepsi}?

c) What is the confidence of milk given beer (i.e., of the association rule {beer} => milk)?

d) What is the confidence of juice given milk?

e) What is the confidence of coke, given beer and juice?

f) If the support threshold is 37.5% (i.e., 3 out of the eight baskets are needed), which pairs of items are frequent?

g) If the support threshold is 50%, which pairs of items are frequent?

h) W hat is the most interesting association rule with a singleton set on the left?