Opinioner WordPress Plugin allows you to ask questions to readers of articles and evaluates the answers. The plugin builds a graph of user opinions and displays it directly on the post and inside the WordPress admin area. This plugin is excellent for conducting online surveys with two answers.

Demo
https://codecanyon.net/item/wordpress-voting-plugin-opinioner/24422642

Download
https://www.filecad.com/e90a/Opinioner-v1.0.0---WordPress-voting-plugin.rar