We have a set of 3600 data points representing transactions on a sporting goods e-commerce site. The support of (tennis balls) is 600 transactions, or 0.1667 The support of (tennis racquet) is 300 transactions, or 0.0833 The support of (tennis balls, tennis racquet) is 200 transactions, or 0.0556 Consider the association rule with tennis balls as the premise, and tennis racquet as the conclusion ("If tennis balls, then tennis racquet"). a)What is the confidence of this association rule? b)What is the lift ratio of this association rule?