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

Question 9

Multiple Choice

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.

 Did Well in MidtermDid Poorly in Midterm Studying for Exam 8020 Went Bar Hopping 3070\begin{array}{lcc} \hline &\text { Did Well in Midterm}&\text {Did Poorly in Midterm }\\\hline \text {Studying for Exam } & 80 & 20 \\\text { Went Bar Hopping } & 30 & 70\\\hline \end{array}

-Referring to Table 2-6, if the sample is a good representation of the population, we can expect _____percent of those who did poorly on the midterm to have spent the weekend studying.


A) 22.22
B) 45
C) 50
D) 10

Correct Answer:

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