Tom wants to know the average number of musical instrument students in his school play. He used the schools to band classes consisting of a total of 48 students as his representatives samples. He concludes that students in his school play and average of three musical instruments in his conclusion valid yes, because all members of the samples play, at least one musical musical instrument. No because his representative samples is too large no because he did not choose students randomly yes because the sample includes both males and females who play Instruments.
