Suppose you are researching the eating habits of people your age. a.) What sampling method could you use to find the percent of students in your grade who eat four servings of fruit and vegetables each day? b.) What is an example of a survey question that does NOT have bias?
a) One possible sampling method to find the percent of students in your grade who eat four servings of fruit and vegetables each day could be stratified random sampling. This would involve dividing the grade into different groups based on certain characteristics (e.g. gender, academic performance), and then randomly selecting a sample from each group to ensure representation of various subpopulations within the grade.
b) An example of a survey question that does NOT have bias could be: "On average, how many servings of fruits and vegetables do you consume in a day?" This question is neutral and does not lead the respondent to a specific answer.