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Five friends have access to a chat room. Is it possible to determine who is chatting if the following information is known ? Either Kevin

Five friends have access to a chat room. Is it possible to

determine who is chatting if the following information is

known

?

Either Kevin or Heather, or both, are chatting.

Either Randy orVijay, but not both, are chatting. If Abby

is chatting, so is Randy. Vijay and Kevin are either both

chatting or neither is

.

If Heather is chatting, then so are

Abby and Kevin. Explain your reasoning.

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