Which statement about the relationship between cost and GRP is accurate?

The accurate relationship in this context is that as total Gross Rating Points (GRPs) increase, the cost per point generally decreases. This observation arises from the nature of advertising and media buying. When an advertiser purchases greater GRPs, they often benefit from economies of scale. Essentially, buying a larger volume of advertising typically allows the advertiser to negotiate better rates with media outlets, leading to a lower cost per rating point.

This relationship is crucial for advertisers aiming to maximize their reach while managing costs effectively. Understanding that as GRPs rise, the overall effectiveness and efficiency of media spending can improve helps in strategic planning and budget allocation for campaigns.