it is either the first one or the third one
Answer:
Someone has died.
Explanation:
In some cultures, neighborhoods, or traditions, when a person dies, their shoes are hung from a power line. This is meant to be a superstitious thing, with some believing that the soul of the person will return if their shoes are hanging.
The problem with self selection in research is that it makes it makes causal interpretations difficult.
<h3>What is self selection?</h3>
This is a type of bias that occurs often times in social science research. In this type of bias, the respondents cause it because they are totally allowed to decide things for themselves.
The respondents are left to decide for themselves whether they want to participate in the research or not.
Read more on self selection here:
brainly.com/question/25261401
