Question

vikki wants to determine whether students in her school would rather attend a sporting event or a concert. which would be the best method for vikki to produce a representative sample? randomly survey 50 students from her grade at her school randomly survey 20 students from each of the three grades at her school randomly survey 50 students from each of the three grades at her school randomly survey 50 students at her school

Explanation:

To get a representative sample of all students in the school, we need to include students from different grades (to account for different age groups/cohorts). The first option only surveys her grade, which is biased. The third option surveys 50 from each of three grades, which may be a larger sample than needed and not necessarily the "best" in terms of practicality or representativeness relative to the second option. The fourth option just surveys 50 students at the school, but it might not evenly represent different grades. The second option, randomly surveying 20 students from each of the three grades, ensures that each grade level (a key subgroup in the school population) is represented, and the total sample size (20*3 = 60) is reasonable and likely to be representative of the entire student body's preferences.

Answer:

randomly survey 20 students from each of the three grades at her school