The probability that 4 is represented in the tree diagram is 6/11. Option C is correct.
- Probability is the likelihood or chance that an event will occur.
- Probability = Expected outcome/Total outcome
From the diagram, the total outcome if nurses are randomly selected is expressed as:
- Total outcome = 2 + 4 + 5 = 11 outcomes
In order to get the probability of representing label 4, the expected outcome is 6;
Hence the probability that 4 is represented in the tree diagram is 6/11
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