# Sample Rate

The sample rate determines what percentage of impressions that match the eligibility conditions receive the survey

Surveys are set to 100% sample rate by default. To change the sample rate, enter a number between 1 and 100%.

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{% hint style="info" %}
Sample Rate is set to 100% by default.
{% endhint %}

#### **When to set the sample rate high vs as low as possible.**&#x20;

**High Sample Rate**

* You want to learn quickly.
* You want to learn quickly & iterate with a V2 survey.&#x20;
* You will only keep this survey up for a short amount of time.&#x20;
* You site has low volume, so you need a higher percentage of visitors to interact with the survey to get significant results.&#x20;
* You’ve chosen to use an inline widget, which looks like content on your page.&#x20;
* You want every visitor to interact with this survey.&#x20;

**Low Sample Rate**

* You have lots of time to collect results.&#x20;
* The volume on your site is very high, so results will come in quickly regardless of what percentage of guests see the survey.&#x20;
* You are creating an evergreen survey that runs on many pages and will exist for a long time.
* Your survey is an overlay and therefore the widget will inspire more impressions.
* You are very concerned about disrupting the visitor’s experience.&#x20;