Please help ASAP!!!

Lydia collected two sets of data.


Set 1 Set 2

17 81

13 80

18 94

51 78

21 95


One set of data shows an outlier. Which set has an outlier, and which number is the outlier?

A. Set 1 contains an outlier. The outlier is 51.

B. Set 1 contains an outlier. The outlier is 13.

C. Set 2 contains an outlier. The outlier is 78.

D. Set 2 contains an outlier. The outlier is 95.


-Thank you