# probability

> The probability that the system triggers a burst.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

```csharp
public float probability { get; set; }
```

### Remarks

Set this value between 0 and 1. Higher values increase the probability that the system triggers a burst.