A saloon has three barbers to handle customers. At the present time, customersarrive at an average rate of eight customers per hour. Each barber can cuthair at a rate of four customers per hour. Arrivals appear to follow the Poissondistribution, and service times follow the exponential distribution.i. How long will the waiting line be on average?ii. How long does the average customer wait until service begins?iii. Suppose customers arrive at a rate of 10 per hour. What effects will thishave?

Introduction: Suppose λ is the rate of arrival of the of customers in the saloon. It is given that…

Answered: A saloon has three barbers to handle…

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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3.) The Affordable Care Act created a market place for individuals to purchase health care plans. In 2014, the premiums for a 27 year old for the bronze level health insurance are given in the table below. Create a frequency distribution, relative frequency distribution, and cumulative frequency distribution using 6 classes. (All prices in the table are in dollars $) 201 189 203 193 179 181 178 164 177 190 189 205 199 174 195 191 180 197 156 203 175 202 170 179 200 202 204 184 203 199 188 198 194 208 206 205
of This frequency table depicts the average hours spent on social media use for students in PSY201 class. Hours Frequency 4 3.5 3 2.5 2 1.5 1 0.5 0 10 5 5 3 7 16 0 5 3 How many students spent at least 3 hours on social media in PSY201?
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Jen is monitoring the growth of her plant, recording how many inches it grows each week. The data she collected has a normall distribution. Which of the four sets of data represents Jen's plant growth data? O {1, 2, 1, 3, 2, 1, 0} O (1, 2, 3, 4, 5, 6, 7, 8, 9) O (2,3,3,3, 4, 4, 4, 4, 4, 5, 5, 5, 6} O {2, 2, 4, 5, 6, 3, 2, 1) 5 O O
Juvenile ground squirrels respond to predators by making “alarm calls” that can alert others to danger. A biologist conducted a study to investigate how squirrels respond to these alarm calls: run to burrow or freeze. The biologist played recordings of alarm calls for three samples of ground squirrels, grouped by age, and observed the squirrels’ responses. The data for the three age levels are shown in the table. Run to Burrow Freeze Total 1 to 5 Days Old 21 18 39 6 to 15 Days Old 16 24 40 16 to 25 Days Old 12 7 19 Total 49 49 98 If ground squirrels at different ages respond to the alarm signals in the same proportions, what would be the expected count for 6- to 15-day-old squirrels that freeze?
Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel, May , ). Hotel occupancy data for February in two consecutive years are as follows. Current Year Previous Year Occupied Rooms 1,512 1,539 Total Rooms 1,800 1,900
A researcher would like to know whether there is a consistent, predictable relationship between ACT scores and GPA for high school students. A sample of 100 students is obtained from students who took the ACT in their Junior year. Based on the test results and gpa scores, students are classified as high or low for ACT and for GPA. The results are summarized in the following frequency distribution: ACT Score High Low High GPA 39 21 Low GPA 15 25 Based on the data, is there a significant relationship between ACT scores and GPA (α = .05). Compute the appropriate measure of association.
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The following table gives the annual revenue for two different companies (in billions of dollars) for a 10-year period. Graph the boxplots for both companies on the same scale. Are the distributions similar? | 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 D 75 80 Year Company A 97 100 94 98 100 105 104 93 90 Company B 50 56 56 62 73 72 72 85 85 ..... What are the five-number summaries for both companies? Company A: Q2 =0 Min = Q3 Max = Company B: Min = Q1 Q2 Q3 = Max = %3D %3D (Type integers or decimals.)
The cumulative frequency diagram shows information about the ages of employees in two companies. Work out the IQR for both companies.
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