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The dendrogram shows that the usage patterns
of MULTLINE
and CALLCARD
are different from the other services. These others
are grouped into three clusters.
One cluster includes
WIRELESS,
PAGER, and
VOICE.
Another includes
EQUIP,
INTERNET, and
EBILL.
The last contains
TOLLFREE,
CALLWAIT,
CALLID,
FORWARD, and
CONFER.
The WIRELESS cluster
is closer to the INTERNET
cluster than the CALLWAIT
cluster.
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Dendrogram |