Chapter 4.1, Problem 5E

To determine

To explain: the opinion poll is almost certainly biased.

Answer to Problem 5E

This opinion poll is almost certainly biased because it uses data from a voluntary response sample.

Explanation of Solution

Given information:

A newspaper advertisement for USA is shown based on the Television Show once said: "Should handgun control be tougher.

This opinion poll is almost certainly biased because it uses data from a voluntary response sample.

It consists of many people in which they choose themselves based on responding the general appeal based on the voluntary response sample. The Voluntary response samples almost never accurately represent the entire population. They tend to over represent people who have strong opinions, as they are the ones who are more likely to respond to such surveys voluntarily.