Suppose multiple class sections are surveyed to determine the effect of commutin

Question

Suppose multiple class sections are surveyed to determine the effect of commuting on student performance. Several questions are asked as part of the survey. Which of the following is a continuous random variable X?

Let X = the number of students in a class section who commute to school.

Let X = the number of days a randomly selected student commuted to school in the past week.

Let X = commute time per student.

All of these

None of these

Let X = the number of students in a class section who commute to school.

Let X = the number of days a randomly selected student commuted to school in the past week.

Let X = commute time per student.

All of these

None of these

Explanation / Answer

Relatively X=commute time per student is a continuous variable

The number of students cannot be divided into points nor the number of days.

But the time can be divided.

Hence Ans: Option c)

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