lilj the probability that the selected invoice is for an item that was purchased at the Sale price , and for which an extended warranty' was purchased; ( ili ; the probability that an extended warranty was purchased for the item on the Selected invoice ; liv; the probability that an extended warranty was purchased, given that the item Was purchased at the Sale price ; and ( V ) the probability that the item was purchased at the sale price given that it was purchased at the retail price . ( C) Are the events Rand W/' mutually exclusive ? Explain . ( d) Are the events Rand Windependent ? Explain