A radio show asks its listeners to call in and answer whether they support a local tax increase. Of the callers, 80% say "no." Which of the following is the most likely reason this poll may not accurately reflect the opinion of the entire town's population?
The listeners who call in may not be representative of all town residents.
The question does not specify the amount of the tax increase.
The poll does not record the exact number of calls.
The results were announced before all calls were received.
