How can an advertiser calculate the view rate of a video campaign?

1. By dividing the number of clicks by the number of views
2. By looking at the percentage of viewers who watched the video until the last quartile
3. By dividing the number of views by the number of impressions
4. By dividing the number of impressions by the number of clicks

100% Correct Answer
By dividing the number of views by the number of impressions