bizneznuz.com, an online business news agency, conducts a poll. Visitors to the site are invited to click on one of two buttons in order to register that they “agree” or “disagree” with the following statement: “Funding for space exploration should be left entirely to the private sector.”

If bizneznuz.com wants to accurately measure its online readership’s support for government-funded space exploration, this poll will deliver a biased and unrepresentative response because:
Source

The pool of respondents is self-selected.
All respondents have internet access.
bizneznuz.com targets mainly the business community.
All of the above.

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