all parts since this is 1 question.

Question 5 [6 marks]. The following is a dendrogram that shows the results of hierarchical clustering between six data-points, using complete linkage. (a) If the dendrogram is cut at height 400 , how many clusters would result, and which data-points would be in each cluster? (b) Explain why the first two points to be joined would be the same if complete linkage or single linkage was used