Single adults: According to a Pew Research Center analysis of census data, in 2012, 20% of American adults ages 25 and older had never been married. If we randomly sample 100 adults from this population, would it be unusual to see a sample with 13% who had never been married? (Source: Wang, W. and Parker, K. (2014). Record Share of Americans Have Never Been Married. Pew Research Center.) Group of answer choices Yes, this is unusual because we expect the sample proportion to be 20%. Yes, this is unusual because the sample proportion has a 7% error which is more than the standard error of 4%. No, this is not unusual because 13% is less than 2 standard deviations from 20%. No, this is not unusual because we expect the sample proportions to vary from 20%.