Using the Manhattan distance between pairwise observations, which pairwise observation is most similar?
Observation x1 x2
1 2 3
2 6 4
3 8 2
Multiple Choice :
A. Observations 2 & 3
B. Observations 1 & 3
C. Observations 1 & 2
D. Both Observations 2 & 3 and 1 & 3
