Serveys can be attached to news posts or custom pages. Depending on the visibility of the parent page (post or custom page), the appropriate groups can see the servey.
You can attach a survey directly to a news post. Select the desired survey from the Attach survey drop-down menu.
To publish surveys on a custom page in the user menu, select Pages & Menu in the administration menu. Click Create New Page to create a new one or edit an existing content page by clicking on the pencil icon. You can find detailed instructions for creating custom pages here.
As the last step, click Add content and select Survey. In the drop-down field set the survey to be displayed. Then click Save.