TABLE 2-6
a Sample of 200 Students at a Big-Ten

TABLE 2-6
A sample of 200 students at a Big-Ten university was taken after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying, and whether they did well or poorly on the midterm. The following table contains the result.

$\begin{array}{lcc} &\text { Did Well in Midterm}&\text {Did Poorly in Midterm }\\\text {Studying for Exam } & 80 & 20 \\\text { Went Bar Hopping } & 30 & 70\\\hline \end{array}$

-Referring to Table 2-6, of those who went bar hopping the weekend before the midterm in the sample, ____percent of them did well on the midterm.

A) 27.27
B) 55
C) 15
D) 30