An experiment has 12 possible outcomes, all equally likely. An event can occur in 6 ways. Find the probability that the event occurs. The probability that the event occurs is (Type an integer or a decimal. Do not round.)

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Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?