Tom wants to know the average number of musical instruments students in his school play. He used the schools to band classes consisting of a total of 48 students and his representative sample. He concluded that the students in his school played average of three musical instruments is his conclusion valid.
No, Tom's conclusion may not be valid. The average number of musical instruments played by students in his sample group does not necessarily represent the average number played by all students at his school. To draw a more accurate conclusion, Tom should obtain a larger and more diverse sample that includes students from various classes and grade levels in his school.
