Question

23, 34, 27, 7, 30, 26, 28, 31, 34 What number is an outlier for the given data? A) 7 B) 23 C) 31 D) 34

Answer 1

An outlier for a data set is a number which stands out, meaning it is not close to the rest of the numbers. It can either be greater OR less than the rest of the numbers. 

23, 34, 27, 7, 30, 26, 28, 31, 34

Which number stands out from this data set?

Yep! 7. This is because it is not close to the other numbers, whereas the other numbers are closer to each other.

A) 7.

Answer 2

The correct answer is 7 , but why is this the answer ? since you asked :) just read below :

_____________________________________________________

An out-liar is a number that doesn't quite fit in, it should stand out from everything else.
No matter what type of number big or small, in this case the answer is 7.

______________________________________________________

Now that we know what the meaning of Out-liar is , you should obviously understand that the number 7 is the only number far away in distance from the rest.

This was my reason being for my answer , I really hope that you find my answer helpful. 
  <span />