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8. Suppose that a website receives a hit every 2 minutes on average....
show working please! 8. Suppose that a website receives a hit every 2 minutes on average....
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8. Suppose that a website receives a hit every 2 minutes on average. a) Find the probability the website receives 3 hits in 2 minutes. Show all steps and find an answer rounded off to 2 decimal places. b) Find the probability the website receives 8 or 9 hits in 10 minutes. Show all steps and find an answer rounded off to 2 decimal places. c) Find the probability the website receives more than 4 hits in...
Customers make purchases at a convenience store, on average, every nine minutes. It is fair to...
Customers make purchases at a convenience store, on average, every nine minutes. It is fair to assume that the time between customer purchases is exponentially distributed. Jack operates the cash register at this store. a-1. What is the rate parameter λ? (Round your answer to 4 decimal places.) a-2. What is the standard deviation of this distribution? (Round your answer to 1 decimal place.) b. Jack wants to take a seven-minute break. He believes that if he goes right after...
Customers make purchases at a convenience store, on average, every sixteen minutes. It is fair to...
Customers make purchases at a convenience store, on average, every sixteen minutes. It is fair to assume that the time between customer purchases is exponentially distributed. Jack operates the cash register at this store. a-1. What is the rate parameter λ? (Round your answer to 4 decimal places.) Rate parameter λ ______________ a-2. What is the standard deviation of this distribution? Standard deviation _____________________ b. Jack wants to take a 12-minute break. He believes that if he goes right after...
Studies of weather show that, historically, Jamaica is hit by a hurricane every 20 years. Calculate...
Studies of weather show that, historically, Jamaica is hit by a hurricane every 20 years. Calculate the following probabilities based on the historical record. a. a. What is the probability that Jamaica will be hit by a hurricane in any given year? Show as a fraction and also show as a proportion with 2 decimal places. (To find the proportion in Excel, I recommend that you not use the Fraction data type. For this problem, divide 1 by the number...
Studies of weather show that, historically, Jamaica is hit by a hurricane every 20 years. Calculate...
Studies of weather show that, historically, Jamaica is hit by a hurricane every 20 years. Calculate the following probabilities based on the historical record. a. What is the probability that Jamaica will be hit by a hurricane in any given year? Show as a fraction and also show as a proportion with 2 decimal places. (To find the proportion in Excel, I recommend that you not use the Fraction data type. For this problem, divide 1 by the number of...
Students arrive at the Administrative Services Office at an average of one every 24 minutes, and...
Students arrive at the Administrative Services Office at an average of one every 24 minutes, and their requests take on average 20 minutes to be processed. The service counter is staffed by only one clerk, Judy Gumshoes, who works eight hours per day. Assume Poisson arrivals and exponential service times. a. What percentage of time is Judy idle? (Round your answer to 1 decimal place.) Percentage of time --------------% b. How much time, on average, does a student spend waiting...
Please show all work. Thank you! Assignment-07: Problem 1 Previous Problem Problem List Next Problem (8...
Please show all work. Thank you!
Assignment-07: Problem 1 Previous Problem Problem List Next Problem (8 points) The wait time (after a scheduled arrival time) in minutes for a train to arrive is Uniformly distributed over the interval [0, 15]. You observe the wait time for the next 95 trains to arrive. Assume wait times are independent. Part a) What is the approximate probability (to 2 decimal places) that the sum of the 95 wait times you observed is between...
Answer parts c,d, and e 2. Suppose two doctors, A and B, test all patients coming...
Answer parts c,d, and e
2. Suppose two doctors, A and B, test all patients coming into a clinic for syphilis. Let events A = Doctor A makes a positive diagnosis and B+ = Doctor B makes a positive diagnosis. Suppose doctor A diagnoses 10% of all patients as positive, doctor B diagnoses 17% of all patients as positive, and both doctors diagnose 8% of all patients as positive. a. Are the events A*, B* independent of each other? Show...
Poisson probablity process with a known average of 6 cars per hour (per 60 minutes). a....
Poisson probablity process with a known average of 6 cars per hour (per 60 minutes). a. Find the expected number of cars driving though in a 23 minutes period. (Round your final answer to1 decimal place.) b. Find the probability of at least 2 cars driving through in a given 23 minutes period. (Round your answer to 4 decimal places) Round you
A high school baseball player has a 0.278 batting average. In one game, he gets 7...
A high school baseball player has a 0.278 batting average. In one game, he gets 7 at bats. What is the probability he will get at least 2 hits in the game? (Round answer to 3 decimal places) A certain kind of sheet metal has, on average, 8 defects per 15 square feet. Assuming a Poisson distribution, find the probability that a 19 square foot metal sheet has at least 9 defects. Round your answer to three decimal places.
show working please!
8. Suppose that a website receives a hit every 2 minutes on average. a) Find the probability the website receives 3 hits in 2 minutes. Show all steps and find an answer rounded off to 2 decimal places. b) Find the probability the website receives 8 or 9 hits in 10 minutes. Show all steps and find an answer rounded off to 2 decimal places. c) Find the probability the website receives more than 4 hits in...
Please show all work. Thank you!
Assignment-07: Problem 1 Previous Problem Problem List Next Problem (8 points) The wait time (after a scheduled arrival time) in minutes for a train to arrive is Uniformly distributed over the interval [0, 15]. You observe the wait time for the next 95 trains to arrive. Assume wait times are independent. Part a) What is the approximate probability (to 2 decimal places) that the sum of the 95 wait times you observed is between...
Answer parts c,d, and e
2. Suppose two doctors, A and B, test all patients coming into a clinic for syphilis. Let events A = Doctor A makes a positive diagnosis and B+ = Doctor B makes a positive diagnosis. Suppose doctor A diagnoses 10% of all patients as positive, doctor B diagnoses 17% of all patients as positive, and both doctors diagnose 8% of all patients as positive. a. Are the events A*, B* independent of each other? Show...
Poisson probablity process with a known average of 6 cars per hour (per 60 minutes). a. Find the expected number of cars driving though in a 23 minutes period. (Round your final answer to1 decimal place.) b. Find the probability of at least 2 cars driving through in a given 23 minutes period. (Round your answer to 4 decimal places) Round you
A high school baseball player has a 0.278 batting average. In one game, he gets 7 at bats. What is the probability he will get at least 2 hits in the game? (Round answer to 3 decimal places) A certain kind of sheet metal has, on average, 8 defects per 15 square feet. Assuming a Poisson distribution, find the probability that a 19 square foot metal sheet has at least 9 defects. Round your answer to three decimal places.
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