A man in a red shirt is standing next to a woman in a blue dress. They are both holding hands and smiling at each other. A person is reading a book in a quiet library. The person is sitting in a comfortable chair and has a cup of hot tea in their hand. Other data have been estimated by judgmentally extrapolating from actual data. This method is often used when there is a lack of data to support a particular hypothesis.
yes
yes
yes