For each pair of variables, indicate whether the relationship is positive, negative, neutral, or ambiguous. Parameter price (high quality) price (low quality) wage of repair workers number of public housing units number of public housing units number of public housing units number of housing vouchers number of housing vouchers Choice Variable f: filter rate f: filter rate f: filter rate price (low quality) number of private housing units r: retirement rate price (low quality) price (medium quality) Relationship [