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) Responses Yes, because the sample includes both males and females who play musical instruments. Yes, because the sample includes both males and females who play musical instruments. No, because his representative sample is too large. No, because his representative sample is too large. No, because he did not choose students randomly. No, because he did not choose students randomly. Yes, because all members of the sample play at least one musical instrument.
1 answer
The conclusion is not valid. The correct response is:
No, because he did not choose students randomly.
Using data from only two band classes may not accurately represent the entire school, as those students may have a tendency to play more instruments compared to students who do not participate in band. A random, diverse selection of students from the entire school would provide a more reliable average.
