Ms. Blevins wants to survey a random sample of students at her middle school about the amount of homework assigned each night. W
hich surveying method is the best option? ~
1) Surveying all of the school’s sixth grade students
2) Surveying all of the students who stay for math tutoring
3) Surveying every fifth student as they arrive to school in the morning
4) Surveying all of the students who play for a sports team at the school
Pupils that chose Band: 60% Pupils that chose Chorus: 40% Boys in band: 70% Boys in chorus: 30% Probability of choosing boy = Probability of boy in band + Probability of boy in chorus P = 0.6 x 0.7 + 0.4 x 0.3 P = 0.54 The answer is D.
