Determining average number of calls

Reference no: EM13102584

The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, or 2. The probabilities are the same for each of these (1/3). If X is the number of calls arriving in a five-minute time period, what is the mean of X?

a. 1/3

b. 2/3

c. 1

d. 4/3

e. none of the above

Reference no: EM13102584

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