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Roughly 1 in 6 students enrolled in higher education took at least one online course last...

Roughly 1 in 6 students enrolled in higher education took at least one online course last fall. Choose 4 enrolled students at random. Find the probability none of the 4 took a course online.

Math   Statistics-And-Probability   
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Answer #1

Roughly 1 in 6 students enrolled in higher education took at least one online course last fall.

So, the chance that a randomly selected student, enrolled in higher education, took at least one online course, is 1/6.

So, the chance of not taking a online course, is 5/6.

Now, we choose 4 enrolled students in random.

We have to find the probability that none of the 4 took a course online.

Now, each will have probability of not taking a course, 5/6.

So, the required probability is

So, the probability that none of the 4 students took a course online, is 0.4822.

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