Internet polling methods are problematic because they have a high likelihood of what type of error?

Self-selection bias

Explanation:

Due to many influences of automated learning technology we have today, Self-selection bias becomes a process which frankly chooses its desired audience.

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.