Tom wants to know the average number of musical instruments students in his school play. He used the school's two band classes, consisting of a total of 48 students, as his representative sample. He concluded that students in his school play an average of three musical instruments. Is his conclusion valid? (1 point)

1 answer

No, Tom's conclusion is not valid. This is because he only used the students from the two band classes as his sample, which may not be representative of the entire school population. To get a more accurate average for the entire school, Tom would need to gather data from a random sample of students from all grades and classes.