# KURTOSIS

Returns the kurtosis of values in a group as `Double`. Kurtosis measures the "tailedness" of a distribution. Higher kurtosis indicates heavier tails and a sharper peak; lower kurtosis indicates lighter tails and a flatter peak.

## Signature

> KURTOSIS(colName)

## Usage Examples

These examples are based on the [Batch Quick Start](https://docs.pinot.apache.org/start-here/quick-start#batch-processing).

```sql
select KURTOSIS(hits) AS value
from baseballStats
WHERE hits > 0
```

| value              |
| ------------------ |
| 18.732580459498024 |