Final answer:
The idea that polling voters only on Mondays and Fridays during morning hours would avoid sampling bias is incorrect. For a representative sample, polling must be done at different times, on various days, and should include all voting methods.
Step-by-step explanation:
The statement that polling voters on Mondays and Fridays during the mornings would be enough to avoid sampling bias is false. To avoid sampling bias, pollsters must ensure that every member of the population has an equal chance of being included in the sample.
Polling only on specific days and during specific times could exclude segments of the population, such as individuals who are unable to visit polling sites during those times due to work or other commitments. Additionally, voter behavior can vary throughout the week and is influenced by a variety of factors, such as early and absentee voting. Therefore, to obtain a representative sample, the survey must be conducted at various times and on various days, as well as accounting for other methods of voting that may occur outside of traditional polling places.