Which Propaganda technique tries to change your mind by implying that you should "join the crowd" because "other people are doing it too"

Which Propaganda technique tries to change your mind by using a celebrity to endorse a message.

Which Propaganda technique tries to change your mind by comparing a wealthy politician to the "average man". Vote for me, I'm just like you!

Which Propaganda technique tries to change your mind by offering unclear and vague statements.

Which Propaganda technique tries to change your mind by providing mis-leading, one-sided, or wrong statistics or information?