Do not use a computer for this question. Suppose we measure 2 variables X1 and X2 for 6 items. The data are as follows. Observations Item

	Observations
Item	X1	X2
A	1	0
B	0.4	1.1
C	0.6	1
D	0	0
E	1	1
F	0.8	2

Do not standardize the data.

Apply a cluster analysis using an average linkage method based on the squared Euclidean distance. Draw a dendrogram.