Load Testing · Junior · Question 10 of 75
Why are percentiles preferred over the average response time?
- 1The average is always higher than the real response time
- 2The average hides slow outliers that many real users still hit
- 3Percentiles are cheaper to calculate on large result sets
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Correct answer: The average hides slow outliers that many real users still hit
Explanation
A few very slow requests barely move the mean, and a few very fast ones can pull it down. Percentiles such as p95 and p99 show what the slowest users experience.