In order to overcome socioeconomic bias, Harris is using what is known as quota sampling, which ensures that the poll's respondents are an accurate reflection of the population's demographics.
Harris uses selective sampling to get a more accurate poll result.
Harris is not using quota sampling with his polls.
The Igreja de Sao Pedro is an unusual church on the opposite side of the museum.
a woman is walking
Two people are in the kitchen of a house.
A young man is outside on a sunny day.
It was noted for its food.
We have never been invited to a party.