Question

juan randomly surveys students in the 7th grade to learn about their favorite type of music of 30 respondents, 8 liked to listen to rap music

Answer 1

Answer: a class of 450 students......1/3 * 450 = 450/3 = 150 i chose country

Explanation: in the class of 90 students (20 rock, 40 hip hop, and 30 countries...added = 90), 30 chose country....30/90 reduces to 1/3.....so 1/3 I chose country.