Answer:
The probability that no customer will arrive in the next 6 minutes is 1.2 minutes or ratio of 0.2
Explanation:
Expected value is the value on the probability of occurrence of the values.
Expected Time consumed on customer in an hour = 8 x 6 = 48 minutes
Probability of customer arrives = 48/60 = 0.8
Probability that customer will not arrive = 1 - 0.8 = 0.2
Expected time Customer will not come in 6 minutes = 6 x 0.2 = 1.2 minutes
