Which would be the best sample for
determining the favorite sport of students
at Harrison Middle School?
A. ten students at a movie theater
B. every tenth student entering the
school in the morning
C. five students from each of the
school’s sports teams
D. the first ten students in the cafeteria
at lunchtime

Afactory buys 10% of its components from suppliers b and the rest from supplier c. it is known that 6% of the components it buys are faulty. of the components brought from suppliers a,9% are faulty and of the components bought from suppliers b, 3% are faulty. find the percentage of components bought from supplier c that are faulty.