Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend afterschool programs. Of the 200 seventh-graders attending Lucy’s school, how many would be expected to attend afterschool programs?
Out of 40 respondents, 7 attend afterschool programs. [tex]\frac{7}{40}=0.175[/tex], so 17.5% of students attend afterschool programs. [tex]0.175*200=35[/tex]. So, out of 200 seventh-graders, 35 would be expected to attend afterschool programs.
