# Discover Citadel 2027: U.S. deadline, eligibility and application preparation

## A positive average is not the whole decision

Original fictional model-evaluation exercise. No real security, strategy or employer assessment is involved.

### Five toy test-period results

| Period | Result |
| --- | --- |
| 1 | +8 |
| 2 | +7 |
| 3 | -6 |
| 4 | -7 |
| 5 | +8 |

## Your turn

Calculate the five-period mean and the mean excluding the final period. State what the comparison can show and what it cannot establish.

## Your answer

[Write your approach here.]

## For your own application

Prepare a project example where you checked robustness instead of reporting only the most favorable metric.

Return to the guide for the worked answer and source notes:
https://internshipdeadlines.com/guides/discover-citadel-program-guide