A newspaper conducts a poll online to determine what proportion of voters approve of the proposed tax increase. In order to participate, people need to log onto the newspaper's website. After 3 days, the newspaper reports that 78% of respondents are in favor of the tax
increase. Which of the following is true about the sample proportion obtained from this sample?

A. The sample is blased and overestimates the proportion because of voluntary response sampling.

B. The sample is not biased and the sample proportion should be approximately the same as the actual proportion.

C. The sample is biased and overestimates the proportion because of random sampling.

D. The sample is blased and overestimates the proportion because of convenience sampling.

Voluntary response sampling is a type of non-probability sampling in which respondents are self-selected, typically by responding to a request for participation in a survey or poll. This type of sampling is prone to bias because it relies on the willingness of individuals to participate, and those who choose to participate may not be representative of the larger population. As a result, the sample proportion obtained through voluntary response sampling is likely to be biased and may overestimate the actual proportion of the population. In this case, the sample proportion obtained from the newspaper's poll is likely to be biased because it relies on voluntary response sampling.