SOLUTION: A software company has 3 customer service representatives. After a week of observation a supervisor determines that there is an 85% probability that 1 customer service representati

Question 308667: A software company has 3 customer service representatives. After a week of observation a supervisor determines that there is an 85% probability that 1 customer service representative will be on the phone with a customer at any given time. What is the probability of all 3 representatives being on the phone at the same time? Round to the nearest percent if necessary.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A software company has 3 customer service representatives. After a week of observation a supervisor determines that there is an 85% probability that 1 customer service representative will be on the phone with a customer at any given time. What is the probability of all 3 representatives being on the phone at the same time? Round to the nearest percent if necessary.
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Assuming the actions of the reps are independent you get:
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P(3 on phone) = 0.85^3 = 0.6141 = 61.41%
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cheers,
Stan H.
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