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Star4567980 Star4567980
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6 years ago
The number of phone calls coming into a switchboard in the next five minutes will either be 0, 1, 2, 3, 4, 5, or 6. The probabilities are the same for each of these (1/7).
 
  If X is the number of calls arriving in a five-minute time period, what is the mean of X?
  A) 2
  B) 3
  C) 4
  D) 5
  E) None of the above
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loganhauslerloganhausler
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Star4567980 Author
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6 years ago
You have been most helpful
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