n this problem, assume Poisson arrivals and exponential service times.Customers of Plaka Record rental outlet arrive at the store to rent CDs with an arrivalrate of 1.25 customers per minute. The store has only 1 counter with a service rate of 2 customers per minute. Suppose that Plaka Record rental outlet adds another counter to serve thecustomers simultaneously. 1. The average number of customers in the waiting line 2. The average number of customers in the system 3. The average time a customer spends in the waiting line. The average time a customer spends in the system

n this problem, assume Poisson arrivals and exponential service times.Customers of Plaka Record rental outlet arrive at the store to rent CDs with an arrivalrate of 1.25 customers per minute. The store has only 1 counter with a service rate of 2 customers per minute. Suppose that Plaka Record rental outlet adds another counter to serve thecustomers simultaneously. 1. The average number of customers in the waiting line 2. The average number of customers in the system 3. The average time a customer spends in the waiting line. The average time a customer spends in the system

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The revenue (in dollars) from the sale of a infant car seats is given by R(x) = 70x -0.02x², 0≤x≤ 3500.
Brandon works as a statistician for the Toronto Blue Jays, and wants to analyze the relationship between a player's age and how many strikeouts they accumulate in a season. He takes a sample of 5 Blue Jays players with age between 25 and 34 and finds there is a linear relationship between their ages and the number of strikeouts they had in the 2015 season. Here are the numerical summaries for age and the number of strikeouts: r = 0.6, age = 25.3, Sage = 3.2, strikeout = 105.7, S strikeout = 7.48 a) What is the value of b₁, the estimated slope? (Round your answer to 3 decimal places, if needed.) Answer: b) What is the value of bo, the estimated intercept? (Round your answer to 3 decimal places, if needed.) Answer: c) What is the percent of variation in the number of strikeouts that is explained by age, using linear regression? (Round your answer to 2 decimal places, if needed.) Answer: % d) Can we use this linear regression to predict the number of strikeouts for a player age at 37? No,…
Express all answers as decimals rounded to 3 decimal places, if needed. Express percentages as decimals (instead of 25.6%, use .256) Cell phone users in Boise can choose between three carriers: Sprint, AT&T, and Verizon. Advertising by all three companies results in a continual shift of customers. Each year, Sprint loses 30% of customers to AT&T and 30% to Verizon. AT&T loses 20% to Sprint and 10% to Verizon. Verizon loses 25% to Sprint and 25% to AT&T. Currently, Sprint has 25% of the market, AT&T has 35%, and Verizon has 40%. Use the order Sprint (S), AT&T (A), Verizon (V) throughout this assignment. 1. State the probability vector: 2. Create the transition matrix, labeling rows and columns, and draw the transition diagram. Create your matrix with the rows ordered S, A, and V, and columns ordered S, A, and V. 3. Assume that for 5 years this trend continues. State the transition matrix after 5 years. 4. What is the market share for each company after 5 years? Sprint: AT&T: Verizon: 5.…
What is the linear pattern of 4500 students in 2014 and 3700 students in 2019
Suppose an oceanographer monitors the daily salinity of a particular ocean in relation to the temperature of the water. The oceanographer plots the data with temperature, in degrees Celsius (°C), along the horizontal axis and salinity, in parts per thousand (ppt), along the vertical axis. Select the true statement about the data point identified by the arrow. An ocean temperature of 21 °C causes the salinity to be 29 ppt. The predicted salinity is 29 ppt when the ocean temperature for the day is 21 °C. An ocean temperature of 29 °C corresponds to a salinity level of 21 ppt. The observed salinity is 29 ppt when the ocean temperature for the day is 21 °C. There is no relationship between the temperature of the ocean on a given day and salinity.
A system has four independent and identical units in parallel. Each unit’s failure rate is 0.0005 failures/h. Calculate the system reliability, if at least two units must operate normally for the system success during a 100-h mission.
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a certain city, projections for the next year indicate there is a 20% chance that electronics jobs will increase by 1400, a 50% chance that they will increase by 400, and a 30% chance they will decrease y 700. Find the expected change in the number of electronics jobs in that city in the next year. he expected change is an increase of jobs.
In west Texas, water is extremely important. The fllowing data represent pH levels in ground water fr a random smple of 102 west Texas wells. A pH and a pH above 7 is alkaline. Scanning the data, you can see that water in this region tends to be hard (alkaline). Too high a pH means the water is unus expensive treatment to make it usable.+ These data are also available for download at the Companion Sites for this text. For convenience, the data are p increasing order. x: pH of Ground Water in 102 West Texas Wells 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.1 7.1 7.1 7.1 7.1 7.1 7.1 |7.1 7.1 |7.1 7.2 | 7.2 7.2 | 7.2 |7.2 7.2 7.2 7.2 7.2 7.2 7.3 7.3 7.3 7.3 7.3 7.3 7.3 7.3
please answer both the questions within 30 minutes. do not answer just one question else i will give negative ratings. make sure you answer both the questions.
Draw a scatter diagram with square feet of living space as the independent variable and selling price as the dependent variable and describe variable and describe the relationship between the size of a house and the selling price.