Question

brianna surveyed a representative sample of students at her school to collect data about the numbers of internet - compatible devices they own. brianna wants to know how many internet - compatible devices are owned, on average, by people in her town. can she use her sample data to form a valid inference about the town? use the drop - down menus to explain your answer. brianna choose... use her sample data to form a valid inference about the town because her school choose... represent her towns entire population.

Explanation:

To form a valid inference about the town's population (all people in the town), the sample must be representative of the entire town. Brianna surveyed students at her school. A school's student population is only a part of the town's population (which includes adults, children not in that school, etc.). So her school's sample cannot represent the entire town. Thus, she cannot use the sample data for a valid inference about the town. The first drop - down should be "cannot" and the second should be "cannot" (since the school's population is not the same as the town's entire population, so it can't represent it).

Answer:

First drop - down: cannot
Second drop - down: cannot