Three friends are auditioning for different parts in a comedy show. Each student has a 50% chance of success.

Use the tree diagram at right to answer 4a-c.
a. Find the probability that all three students will be successful.
b. Find the probability that exactly two students will be successful.
c. If you know that exactly two students have been successful, but do not know which pair, what is the probability that Celina was successful?

Transcribed Image Text:

Celina Brian 9 Abby S suecess F-failure