What is Quality Score in Google AdWords?

Hi Friends,
Quality Score is Google's rating of the quality and relevance of both your keywords and PPC ads. It is used to determine your cost per click (CPC) and multiplied by your maximum bid to determine your ad rank in the ad auction process. The relevance of each keyword to its ad group. Landing page quality and relevance.

Quality Score is Google's rating of the quality and relevance of keywords and PPC ads. It is used to determine your cost-per-click (CPC) and multiply by the maximum bid to determine the ad position during the ad auction. ...the relevance of each keyword to its ad group. Landing page quality and relevance.

Quality Score is an estimate of the quality of your ads, keywords, and landing pages. Higher quality ads can lead to lower prices and better ad positions.