Exhibit 7-2
A random sample of 10 examination papers in a course, which was given on a pass or fail basis, showed the following scores.
-Refer to Exhibit 7-2. The point estimate for the proportion of all students who passed the course is
A)0.8
B)0.2
C)1.8
D)1.2

Question

Exhibit 7-2
A random sample of 10 examination papers in a course, which was given on a pass or fail basis, showed the following scores. 
-Refer to Exhibit 7-2. The point estimate for the proportion of all students who passed the course is
A)0.8 
B)0.2 
C)1.8 
D)1.2

Quizplus · Accepted Answer

The point estimate for the proportion of all students who passed the course is the proportion of the sample who passed the course. In this case, 8 out of 10 students passed, so the point estimate is 8/10 or 0.8.

Exhibit 7-2 A Random Sample of 10 Examination Papers in a Course