Two surveys cross your desk.

The first is an applicant survey sent to 10,000 candidates that brought in 400 responses, a seemingly dismal 4% candidate survey response rate.

The second is an interview feedback survey sent to 200 candidates that brought in 50 responses, a respectable 25% response rate.

Your instinct is to trust the 25% survey and dismiss the 4% survey as a failure. But the math tells the exact opposite story: the 4% survey gives you a razor-sharp