Consider a car repair factory. The number of customers who arrivefor repairs follows a Poisson distribution, about 4 customers perhour on average. Repair time follows a Negative Exponentialdistribution, each service takes an average of 10 minutes.a) What is the average number of customers in the factory?b) What is the average time each customer spent in the factory (inminutes)?a) 1.33; b) 20O a) 2 ; b) 30a) 1.33; b) 30a) 2 ; b) 20

Given information: Arrival rate=λ=4 costumers per hourService rate=μ=1Service time=110costumers per…

Answered: Consider a car repair factory. The…

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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A random sample of 20 adults in a particular country were asked to state what type of birth control method they use. The results are in the table below. None None None Condom Condom Condom Pill Pill Other Other Pill Other Condom Condom Pill None Condom Pill Pill Other a) Since data were collected for variable(s), the correct graph to make is a . b) Complete the frequency/relative frequency table. Birth Control Type Frequency Relative Frequency None Condom Pill Other c) Which of the following is the correct bar chart for the given data? 2468Birth Control TypeFreqNoneCondomPillOther[Graphs generated by this script: setBorder(49,45,0,10); initPicture(0,13,0,8);axes(1000,2,1,1000,2); fill="blue"; textabs([165,0],"Birth Control…
Which statement describes box-and-whisker plots? A) they are divided into sections using quartiles and extremes B) they are created by first writing a data set in order from least to greatest C)they show how a data set is distributed D) all of the above
Q. Using the data given below answer the questions asked. 56 48 47 42 52 58 42 37 68 40 32 46 45 41 38 34 54 57 61 53 26 45 46 44 50 30 40 56 44 39 21 49 45 51 38 63 39 33 42 37 62 48 43 41 35 43 52 28 54 36 a) Make a frequency distribution of the data with proper number of classes, class limits, class boundaries, midpoints of the classes, frequencies and cumulative frequency columns. b) Make histogram of the data and also draw its frequency polygon. - c) Find Mean, Median, Mode and Quartiles of the data using the frequency distribution.
10. Draw an ogive of the following distribution. Wage (in Rs): 70-80 80-90 90–100 100–110 110–120 120–130 130–140 No. of workers: 4 6 10 16 12 7 3
2) Here are some data on height (in meters) of mature sycamore trees. Construct a boxplot of these data. Do not use R: 24.8 15.1 33.2 31.3 26.0 23.8 36.9 15.7 35.2 17.6 23.6 31.4 52.2
Average monthly wages (per employee) in 4 sectors of an economy are as follows: industry: 2000 dinars, building: 2200 dinars, agriculture: 1500 dinars, services: 1800 dinars. Number of people employed in the four sectors are 5 million, 2 million, 6 million, and 2 million, respectively. Using the concept of harmonic mean compute the average monthly wages in the economy under consideration.
Q.2 A random sample of marks scored by students during Mid Semester Exam are as follows. 12, 15, 18, 11, 16, 14, 9, 17, 18, 19, 11, 12, 15, 18, 11, 16, 14, 9, 17, 18, 19, 11, 12, 15, 18, 11, 16, 14, 9, a) Construct a table that gives the frequency distribution of this data. b) Construct a table that gives the relative frequency distribution of this data. c) Construct a frequency histogram of this data. d) Construct a relative frequency histogram of this data. e) Find the sample mean for this data set. ) Find the median of this data set. g) Find the mode of this data set. h) Find the sample standard deviation of this data set. i) Construct an ogive curve of this data.
Find the mean of the data summarized in the given frequency distribution. 12) The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean speed. Speed (mph) Cars 30-39 4 40-49 19 50-59 50 60-69 15 70-79 12 A) 61.3 mph B) 58.5 mph C) 55.7 mph D) 54.5 mph I said, D, and it is wrong.
The Bar graph below describes the scores of a group of students on a 10-point math quiz Frequency 10 9 8 7 6 2 1 0 Ill.... 6 7 3 4 Quiz Scores 5 Score a) How many students took the math quiz? 8 9 10 b) What percentage of the students scored 3 points (round to one decimal place)? c) If a grade of 6 or more was needed to pass the quiz what percentage of the student's passed? (Round your answer to the nearest tenth of a percent.) % %
a) Construct a frequency distribution table. Take 20 as the lowest limit of the first class and 10 as the width of each class. b) Develop the relative frequency for the above data. c) Develop a cumulative frequency for the above data.

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