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again using the cumulative frequency distribution of problem 1 determinea the percentile rank of a score of 41b the
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Calculate the mean and the standard deviation of the distribution. What is the probability that a flight arrives late (later than 9:25 am)?
Find the probability that the account is overdue. Find the probability that the account has a balance over $500 and is overdue.
What salary would you predict for a male employee with 12 years educations, 10 months of previous work experience, and with time hired equal to 15 months?
What is the average number of customers both waiting in line and being served at each of the two checkstand locations?
On the average, how much longer will a caller wait on hold to speak to a receptionist if Chris were hired than if Pat were hired?
Determine the average amount of time an arriving customer will have to wait before ordering french fries from the vending machine.
If the small store leases for $200 per day and the large store leases for $2000 per day, which configuration should be used?
What is the average amount of time a bus will be out of service for a needed repair?
If a caller does not get a busy signal, what is the average total time spent waiting on hold and speaking to an operator?
Comment on the appropriateness of modeling the service time at Bronco Burger by an exponential distribution.
How fast would their combined average service time have to be if the average time a customer spends in the store is to remain unchanged?
The time Jack spends with customers follows an Erlangian distribution with a mean of 4 minutes and a standard deviation of 2 minutes.
The mean of this data set is 205.6 seconds, and the standard deviation is 200.08 seconds.
On the average, how many orders are being processed or are waiting to be processed?
Hence, the arrival process of cars can be modeled using the Poisson distribution with average arrival rate ? = 36 per hour.