The type of bias which is being represented is:
This is a type of bias which has to do with the similarity of events and a belief that such an action would repeat.
With this in mind, we can see that because Chelsea has a fear of being sacked because there was a similar situation six months ago when a colleague was sacked, then this is a Representative bias
Read more about representative bias here:
https://brainly.com/question/24053333