Here is the five-number summary for a group of 100 runners in a 5-kilometer race. The variable is the time to complete the race.

Five-number summary:

• Minimum: 15 minutes
• Q1: 27 minutes
• Median: 31 minutes
• Q3: 32 minutes
• Maximum: 50 minutes

Are there any outliers in the runners' finish times by the 1.5 * IQR definition?

1. The slowest runner is an outlier, but the fastest runner is not an outlier.
2. The fastest runner is an outlier, but the slowest runner is not an outlier.
3. Both the slowest and the fastest runners are outliers.
4. Neither the slowest or the faster runner is an outlier.