An experiment has four equally likely outcomes E1 E2 E3
An experiment has four equally likely outcomes: E1, E2, E3, and E4.
a. What is the probability that E2 occurs?
b. What is the probability that any two of the outcomes occur (e.g., E1 or E3)?
c. What is the probability that any three of the outcomes occur (e.g., E1 or E2 or E4)?

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