The time (in minutes) a postal clerk spends with his or her customer is known to...
The time (in minutes) a postal clerk spends with his or her customer is known to have an exponential distribution with the average amount of time being 7 minutes. The lambda of this distribution is .1429 Correct The probability that the time is longer than 11 is P(x ≥ 11) = .2076 Correct The probability that the time is shorter than 3 is P(x ≤ 3) = .3486 Correct The probability that the time is between 4 and 8 is P(4 ≤ x ≤ 8) = Incorrect The 37th percentile is a phone call that lasts Incorrect minutes.
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The time (in minutes) a postal clerk spends with his or her
customer is known to...
Suppose that the length of long distance phone calls, measured in minutes, is known to have...
Suppose that the length of long distance phone calls, measured in minutes, is known to have an exponential distribution with the average length of a call equal to $14 minutes. The lambda of this distribution is .0714 Correct The probability that the length of a phone call is longer than 18 is P(x ≥ 18) = .2766 Correct The probability that the length of a phone call is shorter than 11 is P(x ≤ 11) = .5440 Correct The probability...
How can I find the 60th percentile of an exponential distribution where a clerk spends on...
How can I find the 60th percentile of an exponential distribution where a clerk spends on average four minutes with each customer? let X equal the amount of time that a clerk spends with each customer and that is known to have an exponential distribution.
A grocery clerk can serve 20 customers per hour on average and the service time follows an exponential distribution. What is the probability that a customer's service time is less than 2 minutes?
A grocery clerk can serve 20 customers per hour on average and the service time follows an exponential distribution. What is the probability that a customer's service time is less than 2 minutes?
A grocery clerk can serve 20 customers per hour on average and the service time follows an exponential distribution. What is the probability that a customer's service time is more than 4 minutes?
A grocery clerk can serve 20 customers per hour on average and the service time follows an exponential distribution. What is the probability that a customer's service time is more than 4 minutes?
the Idea in details Thank you! The amount of time (in minutes) that Dr. Swift spends...
the Idea in details
Thank you!
The amount of time (in minutes) that Dr. Swift spends helping each student that visits during office hours is a random variable having an exponential distribution with 0-11. The (a) When he arrives for office hours on Monday, there is 1 student waiting for help. What (b) When he arrives for office hours on Tuesday there are 2 students waiting for help time helping each student is independent of the time helping any other...
2. The amount of time (in minutes) that Dr. Swift spends helping each student that visits...
2. The amount of time (in minutes) that Dr. Swift spends helping each student that visits during office hours is a random variable having an exponential distribution with 0 11. The (a) When he arrives for office hours on Monday, there is 1 student waiting for help. What (b) Whe he arrives for office hours on Tuesday there are 2 students waiting for help time helping each student is independent of the time helping any other student is the probability...
The amount of time (in minutes) that Dr. Swift spends helping each student that visits during...
The amount of time (in minutes) that Dr. Swift spends helping each student that visits during office hours is a random variable having an exponential distribution with θ = 11. The time helping each student is independent of the time helping any other student. (a) When he arrives for office hours on Monday, there is 1 student waiting for help. What is the probability Dr. Swift spends at least 25 minutes helping this student? (b) When he arrives for office...
The time that it takes for the next train to come follows a Uniform distribution with...
The time that it takes for the next train to come follows a Uniform distribution with f(x) =1/25 where x goes between 6 and 31 minutes. Round answers to 4 decimal places when possible. This is a Correct distribution. It is a Correct distribution. The mean of this distribution is 18.50 Correct The standard deviation is Incorrect Find the probability that the time will be at most 28 minutes. Incorrect Find the probability that the time will be between 12...
Let X = the time between two successive arrivals (in minutes) at a drive thru window....
Let X = the time between two successive arrivals (in minutes) at a drive thru window. Suppose X is exponentially distributed, and that the average time between successive arrivals at the drive thru window is 1.2 minutes. What is the value of lambda, the parameter of exponential distribution? What is the probability that the next drive thru arrival is between 1 to 4 minutes from now? What is the probability that the next drive thru arrival is greater than 2...
Service time for a customer coming through a checkout counter in a retail store is a...
Service time for a customer coming through a checkout counter in a retail store is a random variable with the mean of 2.0 minutes and standard deviation of 4.0 minutes. Suppose that the distribution of service time is fairly close to a normal distribution. Suppose there are two counters in a store, n = 31 customers in the first line and n2 = 42 customers in the second line. Find the probability that the difference between the mean service time...
the Idea in details
Thank you!
The amount of time (in minutes) that Dr. Swift spends helping each student that visits during office hours is a random variable having an exponential distribution with 0-11. The (a) When he arrives for office hours on Monday, there is 1 student waiting for help. What (b) When he arrives for office hours on Tuesday there are 2 students waiting for help time helping each student is independent of the time helping any other...
2. The amount of time (in minutes) that Dr. Swift spends helping each student that visits during office hours is a random variable having an exponential distribution with 0 11. The (a) When he arrives for office hours on Monday, there is 1 student waiting for help. What (b) Whe he arrives for office hours on Tuesday there are 2 students waiting for help time helping each student is independent of the time helping any other student is the probability...
Service time for a customer coming through a checkout counter in a retail store is a random variable with the mean of 2.0 minutes and standard deviation of 4.0 minutes. Suppose that the distribution of service time is fairly close to a normal distribution. Suppose there are two counters in a store, n = 31 customers in the first line and n2 = 42 customers in the second line. Find the probability that the difference between the mean service time...
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