Question

The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution...

The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution with the average amount of time equal to 31 minutes. What is the probability that a randomly selected spouse spends 20 to 77 minutes to shop for anniversary card?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution...
The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution with the average amount of time equal to 31 minutes. Let X - is the amount of time (in minutes) that a randomly selected spouse spends to shop for anniversary card. What is the standard deviation of X?
Q1 a) The amount of time spouses shop for anniversary cards can be modeled by an...
Q1 a) The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution with the average amount of time equal to 6 minutes. Write the distribution along with the appropriate parameter, state the probability density function, and graph the distribution. b) The number of days ahead travelers purchase their airline tickets can be modeled by an exponential distribution with the average amount of time equal to 10 days. Find the probability that a traveler will...
Quiz 4. John's answering machine receives about 7 telephone calls between 8 a.m. and 10 a.m....
Quiz 4. John's answering machine receives about 7 telephone calls between 8 a.m. and 10 a.m. What is the probability that John receives exactly one phone call between 9:00 am and 9:15 am? 5. Bus waiting time is uniformly distributed with the shortest and the longest waiting times being 9 and 21 minutes respectively. What is the standard deviation of the average waiting time of 46 passenger 6. The amount of time spouses shop for anniversary cards can be modeled...
Let X = amount of time (in minutes) a postal clerk spends with a customer. Where...
Let X = amount of time (in minutes) a postal clerk spends with a customer. Where the average amount of time is equal to four minutes. What is the probability that a clerk spends four to five minutes with a randomly selected customer ?
5. A) A VCR has an exponential failure time distribution, with an average time of 20,000...
5. A) A VCR has an exponential failure time distribution, with an average time of 20,000 hours. If the VCR has lasted 20,000 hours, then the probability that it will fail at 30,000 hours or earlier is: B) Of the following normal curves, with the parameters indicated, the one that most closely resembles the curve with parameters ϻ = 10 and σ = 5 and it is: C) The service time at the window of a certain bank follows an...
The waiting time (in minutes) for a new bitcoin block follows an exponential distribution with? =...
The waiting time (in minutes) for a new bitcoin block follows an exponential distribution with? = 15. a. What is the probability that no blocks are found within 30 minutes? b. What is the probability that the waiting time for a new block is between 10 minutes and 20 minutes? c. What is the probability of finding less than 2 blocks in an hour?
Computer response time is an important application of exponential distribution. Suppose that a study of a...
Computer response time is an important application of exponential distribution. Suppose that a study of a certain computer system reveals that the response time (X), in seconds, has an exponential distribution with a rate parameter θ. The study also showed that 90% of these computers respond within 5 seconds. a) Find the value of θ (round it to one decimal place) [4 points] b) What is the probability that a randomly selected computer will respond between 4 and 6 seconds?...
The repair time of a telecommunication antenna has an exponential distribution, with an average of 22...
The repair time of a telecommunication antenna has an exponential distribution, with an average of 22 minutes. It is requested: a) Find the probability that the repair time of the antenna is less than 10 minutes. b) To perform a scheduling, how much time should be assigned to each repair so that the probability of the repair time exceeding the assigned time is only 0.1? c) Knowing that the repair time has already exceeded 5 minutes, what is the probability...
The time between arrivals at a toll booth follows an exponential distribution with a mean time...
The time between arrivals at a toll booth follows an exponential distribution with a mean time between arrivals of 2 minutes. What is the probability that the time between two successive arrivals will be less than 3 minutes? What is the probability that the time will be between 3 and 1 minutes?
The number of emails that I get in weekday can be modeled by a Poisson distribution...
The number of emails that I get in weekday can be modeled by a Poisson distribution with an average of 0.2 emails per minute. 1. What is the probability that I get no emails in an interval of length 5 minutes? 2. What is the probability that I get more than 3 emails in an interval of length 10 minutes?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT