A sample of 200 students at a Big-Ten university was taken after the midterm to
ID: 2506739 • Letter: A
Question
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 Midterm Did Poorly in Midterm
Studying for exam 180 120
Went Bar Hopping 130 70
1. Referring to the table of those who went bar hopping , what percent did well on the midterm?
2. Referring to the table of those who did well on the midterm, what percentage went bar hopping the weekend before the midterm?
3.What percentage of students did poorly and went bar hopping?
4. What percentage of students did well on the Midterm?
5. Of those students studying for the exam, what percentage did poorly in the midterm?
Explanation / Answer
1)percent did well on the midterm =130/200 *100 = 65%
2)percentage went bar hopping the weekend before the midterm =130/180 *100 =72.22%
3)percentage of students did poorly and went bar hopping = 70/200*100 =35%
4)percentage of students did well on the Midterm =180/200 = 90%
5)Of those students studying for the exam, percentage did poorly in the midterm =20/200 =10%