Without further data, I would say mode. Eye color would only be a nominal scale.
http://drdavespsychologypage.homestead.com/Two___Two_____four.pdf
A researcher measures eye color for a sample of n = 50 people. Which measure of central tendency would be appropriate to summarize the measurements?
a. mean
b. median
c. mode
d. any of the three measures could be used
4 answers
mode
Mean, median, and mode
mean