Question

question 5 (4 points)
listen
haley wants to determine the percent of students in grade 9 who play computer games.
plan a: ask all the students in her grade 9 computer class.
plan b: ask five students from each grade 9 class.
which plan should haley select?
either
b
a
neither

Explanation:

To determine the percent of Grade 9 students who play computer games, we need a representative sample. Plan A (asking only computer class students) is biased because computer class students may be more likely to play computer games. Plan B (asking five students from each Grade 9 class) is a more random and representative sample as it includes students from all classes, reducing bias. So Plan B is better.

Answer:

B. Plan B