Mathematics, 15.10.2019 00:20, passions3534ovf6dt

Kareem wants to find the number of hours the average sixth-grader at his school practices an instrument each week. which is the best way kareem can get a representative sample?
a. he can randomly survey 50 boys in the school.
b. he can survey 30 students in the school band.
c. he can randomly survey 50 6th graders in the school.
d. he can survey 20 friends from his neighborhood.

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Kareem wants to find the number of hours the average sixth-grader at his school practices an instrum...