Question

Fifteen students in a class received the following scores on their last test:

15, 62, 65, 65, 71, 73, 74, 75, 75, 81, 83, 84, 88, 91, 96, 99

Which of these numbers could be considered an "outlier"?

Answer 1

The outlier would be 15.

Explanation:

What is an outlier?

An outlier is a data point that lies outside the overall pattern in a distribution.

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Here, we have 15, 62, 65, 65, 71, 73, 74, 75, 75, 81, 83, 84, 88, 91, 96, 99.

The outlier here would be 15 because compared to the other numbers 15 is not as close to 60-90 as the others are.

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Answer 2

The outlier is:

⇨ 15

Work/explanation:

An outlier is a data value that is the smallest/largest in the entire set and that is alot smaller/larger than the other values in the set. It can be considered the odd one out.

Here we notice that all the scores are clumped together (from 62 to 99) but one of them is further away than the other ones. That number is 15.

Hence, 15 is the outlier.