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Assume that the class has 80 students and the examination period is 130 minutes long. How many students do you expect will be unable to complete the exam in the allotted time?

Answer :

Final answer:

Around 20 students are expected to be unable to complete the exam in the allotted time.

Explanation:

To find the number of students expected to be unable to complete the exam in the allotted time, we need to determine the percentage of students who finish the exam in more than 130 minutes. The given information does not directly provide this percentage, so we cannot calculate an exact number. However, Solution 2.20 states that 75 percent of students finished the exam in 35 minutes or more, which means that approximately 25 percent (100% - 75%) of students finished in less than 35 minutes. Using this information, we can estimate that around 25 percent of the 80 students (80 x 0.25) will not be able to complete the exam in the allotted time. Therefore, we expect around 20 students to be unable to finish the exam.

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