Justin's dad claims that taking piano lessons will help Justin get into an Ivy League school one day, Justin decides
to try to prove his dad wrong by interviewing a randomly selected sample of college-educated adults. Justin asks
them whether they attended an Ivy League school and also whether they took piano lessons as a child.
The relative frequency table below shows his results. Justin interviewed 9 randomly selected adults who
attended an Ivy League school but did not take piano lessons.
How many adults in Justin's survey took piano lessons?
(Round to the nearest whole number.)
Does the table show evidence of an association between not taking piano lessons and not attending an Ivy
League school?
Choose all answers that apply: