ANSWER
Product A performed better in the study. That is because only 24% failed to get relief with this product, whereas 32% failed to get relief with product B.
Step-by-step explanation
To answer this question, we have to find the percentage of people that failed to get relief with each product.
For product A, 25 people were given this one and 6 failed to experience relief, so the percentage of failure is,
For product B, 50 people were given this product and 16 failed to experience relief, so the percentage of failure is,
Hence, since the percentage of failure for product A is less than the percentage of failure for product B, we can conclude that product A performed better in the study.