In problem set 10, problem 1 requires that: "Given the holdout set, find the error by calculating the squared distance of each point in the holdout set to its nearest cluster." Is that the distance to the nearest centroid?

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-00sc-introduction-to-computer-science-and-programming-spring-2011/unit-3/lecture-22-using-graphs-to-model-problems-part-2/MIT6_00SCS11_ps10.pdf

Question

In problem set 10, problem 1 requires that: "Given the holdout set, find the error by calculating the squared distance of each point in the holdout set to its nearest cluster."  Is that the distance to the nearest centroid?

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-00sc-introduction-to-computer-science-and-programming-spring-2011/unit-3/lecture-22-using-graphs-to-model-problems-part-2/MIT6_00SCS11_ps10.pdf