Two ads: the first shown 1000 times with 50 clicks, the second shown 500 times with 25 clicks. What can be said about them?

For two products, you can calculate the CTR (Click-Through Rate) — the ratio of clicks to impressions:

• First product: 50 clicks / 1000 impressions = 5%
• Second product: 25 clicks / 500 impressions = 5%

Both products have the same CTR, indicating equal effectiveness in attracting clicks relative to impressions.

However, the second product was shown half as often, meaning its reach is smaller. If the goal is to maximize clicks, consider increasing the impressions of the second product.

It is also important to consider statistical significance and context (e.g., display time, audience). But based on the data, we can say that the click efficiency of the products is the same.