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MATH221_W2_Lab Nealia Francis
School: DeVry Chicago
Course: Statistics For DecisionMaking
Statistics Lab Week 2 Name:_Nealia Francis_ Math221 Statistical Concepts: Using MINITAB Graphics Shapes of Distributions Descriptive Statistics Empirical Rule Data in MINITAB MINITAB is a powerful, yet userfriendly, data analysis software package. Y

Quiz # 2 Week 5
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
There are 2 pages in this exam: Page: 1 2 1. Question: (TCO4)Threemembersofaclubwillbeselectedtoserveasofficers.Thefirstpersonselectedwillbe president,thesecondpersonwillbevicepresidentandthethirdwillbesecretary/treasurer.Howmany wayscantheseofficersbesel

Template_of_Week6Lab_Excel
School: DeVry Chicago
zScore 3.50 3.25 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 Area to the Left 0.00023 0.00058 0.00135 0.00298 0.00621 0.01222 0.02275 0.04006 0.06681

Week 3 Quiz
School: DeVry Chicago
Course: Statistics For Decision Making
1. Question: (TCO1)Whatmethodofdatacollectionwouldyouusetocollectdataforastudywhereapoliticalpollster wishestodetermineifhiscandidateisleadinginthepolls? Your Answer: useasimulation performaanexperiment takeacensus usesampling ( asubsetofthepopulationisob

Week 5 Quiz Math221on Statistics
School: DeVry Chicago
Course: Statistics For Decision Making
Week 5 quiz math221on statistics 1. Question: (TCO4)HowmanywayscananEMTunioncommitteeof5bechosenfrom25EMTs? Your Answer: 100 125 15,504 53,130 ( Ch4:Orderdoesnotmatter:25C5=53,130 ) CORRECT Points Received: 5 of 5 2. Question: (TCO4)Whichofthefollowingcan

_Week_4_Lab1
School: DeVry Chicago
Math 221 Week 4 Lab Submitted by: Part 1. CrossReference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P(high calorie)? a. Phigh calorie=number of high calorie cerealstotal number of ceri

20101010_150612_week6lab_solution
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
Math 221 * Example Format * Week 6 Lab Submitted by: (Insert Name) Part 1. Normal Distributions and Birth Weights in America 1(a) 37 to 39 weeks as mean is around 7.33 lb. 1(b) 40 weeks as mean is around 7.72 lb. 1(c) 28 to 31 weeks as mean is 4.07 lb. 2(

_Week_4_Lab1
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
Math 221 Week 4 Lab Submitted by: Part 1. CrossReference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P(high calorie)? a. Phigh calorie=number of high calorie cerealstotal number of ceri

Probability Distributions
School: DeVry Chicago
Course: Statistics For Decision Making
The Normal Probability Distribution and Zscores Using the Normal Curve to Find Probabilities Carl Gauss The normal probability distribution or the "normal curve" is often called the Gaussian distribution, after Carl Friedrich Gauss, who discovered man

Final_exam_review_detailed_answers
School: DeVry Chicago
Course: Statistics For DecisionMaking
Final Exam Review Questions Solutions Guide You will probably want to PRINT THIS so you can carefully check your answers. Be sure to ask your instructor if you have questions about any of the solutions given below. 1. Explain the difference between a popu

Statistics For Decision Making Final Exam
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics for Decision Making final exam 1. Question: (TCO 9) The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected s

20100713_000202_week2lab_solutiononline
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
Math 221 * Example Format * Week 2 Lab Submitted by: Part 1. Random Sampling Ordered Sample AA AE AK AN AP AU AX BA BB BG BM BQ BT CB CE CK CQ CT CU CV Files should be selected randomly for auditing to avoid biasness. It is not always possible to audit al

Week2laba.jasperstat
School: DeVry Chicago
Course: Statistics For Decision Making
Math 221 Week 2 Lab Submitted by: Part 1. Random Sampling Ordere d Sample 3 5 6 7 8 9 17 21 31 56 35 38 72 52 60 19 61 68 70 71 Account Name ac ae af ag ah ai aq au be cd bi bl ct bz ch as ci cp cr cs 1. It is important to randomly sample these accounts t

Practice Quiz Week 2
School: DeVry Chicago
Course: Statistics For Decision Making
Math 221  Statistics Practice Quiz Week 2 This quiz review covers materials from Weeks 1 and 2. Your quiz will be in Week 3 located in the Quiz Tab. Your quiz will mostly comprise of multiple choice, true/false, and essay questions. The answers are at th

MATH221_Week2lab.graded
School: DeVry Chicago
Course: STATISTICS
Math 221 Week 2 Lab Good work here, thank you, you earned 64.5 of 65 points for this lab. Please review the information and notes in the following table and the comments in the body of this document, then you may update and resubmit the lab if you wish. A

MATH221 Wk1_Part_B[1]
School: DeVry Chicago
Course: STATISTICS
Week 1: Chapter 2, 1st Part Descriptive Statistics: Visual and Numerical Descriptions Descriptive Statistics: Visual and Numerical Descriptions In this chapter, well examine the visual techniques used to organize and summarize information. The goal of the

MATH221 Wk1_Part_C[1]
School: DeVry Chicago
Course: STATISTICS
Week1:Chapter2continued DescriptiveStatistics: AveragesandVariation MeasuresofCentralTendency Eventhoughtheconceptsofaveragesand variationareintroducedhere,theyarealso cornerstonesofinferentialmeasurement Thethreemostcommonlyusedmeasuresof centraltendency

MATH 221 Practice Quiz Week 2
School: DeVry Chicago
Course: STATISTICS
Math 221  Statistics Practice Quiz Week 2 This quiz review covers materials from Weeks 1 and 2. Your quiz will be in Week 3 located in the Quiz Tab. Your quiz will mostly comprise of multiple choice, true/false, and essay questions. The answers are at th

MATH221_Wk4_Lab
School: DeVry Chicago
Course: STATISTICS
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MATH221_ Wk2lab_answers_Word
School: DeVry Chicago
Course: STATISTICS
Math 221 Week 2 Lab Part 1 Random Sampling Rando m Sample 70 66 63 67 17 2 41 56 18 5 33 6 55 44 74 64 27 26 6 44 Ordered Sample 2 5 6 8 17 18 22 26 27 33 41 44 55 56 63 64 66 67 70 74 Why is it important for the auditor to randomly select files for audit

MATH221_WK4 Template
School: DeVry Chicago
Course: STATISTICS
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MATH221_WK2 Template
School: DeVry Chicago
Course: STATISTICS
Welcome to Our First Lab for MATH 221! These labs are designed to show you how to use Excel to help with statistical analysis. If you are familiar with Excel, that is great! If not, don't worry, we'll show you everything you need to know to successfully w

MATH221_WK2 Lab
School: DeVry Chicago
Course: STATISTICS
Welcome to Our First Lab for MATH 221! These labs are designed to show you how to use Excel to help with statistical analysis. If you are familiar with Excel, that is great! If not, don't worry, we'll show you everything you need to know to successfully w

MATH221_ Wk4lab_answers_Word
School: DeVry Chicago
Course: STATISTICS
Math 221 Week 4 Lab Part 1. CrossReference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P (high calorie)? The probability that the cereal will be high calorie is 63.1%. I figured this an

MATH221_Excel_Template_Week6Lab
School: DeVry Chicago
Course: STATISTICS
zScore 3.50 3.25 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 Area to the Left 0.00023 0.00058 0.00135 0.00298 0.00621 0.01222 0.02275 0.04006 0.06681

MATH221_week6lab_answers
School: DeVry Chicago
Course: STATISTICS
Math 221 * Example Format * Week 6 Lab Submitted by: (Insert Name Here *REMOVE THIS NOTE PRIOR TO SUBMITTING*) (Note: Your labs should be well organized, with results clearly identified and in the proper order. When answering questions, be sure to use com

Week 5 Quiz
School: DeVry Chicago
Course: Statistics For DecisionMaking
Week5:NormalProbabilityDistributionsQuiz 1. Question: (TCO4)HowmanywayscananEMTunioncommitteeof5bechosen from25EMTs? StudentAnswer: 100 125 15,504 53,130(Ch4:Orderdoes notmatter:25C5= 53,130) PointsReceived: Comments: 2. Question: 0of3 (TCO4)Whichofthefo

MATH221_W4_Lab
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab Week 4 MATH221 Statistical Concepts: Probability Binomial Probability Distribution Calculating Binomial Probabilities Open a new MINITAB worksheet. We are interested in a binomial experiment with 10 trials. First, we will make the proba

Lab_2_stats
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab Week 2 Name:_Shaji Ali_ Math221 Statistical Concepts: Using MINITAB Graphics Shapes of Distributions Descriptive Statistics Empirical Rule Data in MINITAB MINITAB is a powerful, yet userfriendly, data analysis software package. You ca

MATH221_W6_Lab_Solutions
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab #6 Name:_Eneida Maskuti _ Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We wan

MATH221_W4_Lab_solutions
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab Week 4 Name: Eneida Maskuti MATH221 Statistical Concepts: Probability Binomial Probability Distribution Calculating Binomial Probabilities Open a new MINITAB worksheet. We are interested in a binomial experiment with 10 trials. First, w

MATH221 Week 2 Lab
School: DeVry Chicago
Course: Statistics For Decision Making
Statistics Lab Week 2 Name: Eneida Maskuti Math221 Statistical Concepts: Using MINITAB Graphics Shapes of Distributions Descriptive Statistics Empirical Rule Data in MINITAB MINITAB is a powerful, yet userfriendly, data analysis software package. Yo

MATH221_W6_Lab_Kathryn Broadway
School: DeVry Chicago
Course: Stats
Statistics Lab #6 Name:_ Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate

MATH221_W6_
School: DeVry Chicago
Course: Stats
Statistics Lab #6 Name: Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate

Week 3 Quiz
School: DeVry Chicago
Course: Statistics For DecisionMaking
Week3:RulesofProbability,ProbabilityAnalysisQuiz 1. Question: (TCO1)Whatmethodofdatacollectionwouldyouusetocollectdatafor astudyofthesalariesofcollegeprofessorsataparticularcollege? StudentAnswer: useasimulation performanexperiment usesampling takeacensu

MATH221_W6_Lab Nealia Francis
School: DeVry Chicago
Course: Statistics For DecisionMaking
WEEK 6 ILAB WAS NOT SUBMITTED.

MATH221_W4_Lab Nealia Francis
School: DeVry Chicago
Course: Statistics For DecisionMaking
Statistics Lab Week 4 Name:_Nealia Francis_ MATH221 Statistical Concepts: Probability Binomial Probability Distribution Calculating Binomial Probabilities Open a new MINITAB worksheet. We are interested in a binomial experiment with 10 trials. First,

MATH221_W6_Lab T
School: DeVry Chicago
Statistics Lab #6 Name:_ Statistical Concepts: Data Simulation Discrete Probability Distribution Confidence Intervals Calculations for a set of variables Open the class survey results that were entered into the MINITAB worksheet. We want to calculate

MATH221_W4_Lab T
School: DeVry Chicago
Statistics Lab Week 4 Name: MATH221 Statistical Concepts: Probability Binomial Probability Distribution Calculating Binomial Probabilities Open a new MINITAB worksheet. We are interested in a binomial experiment with 10 trials. First, we will make the

MATH 221 Wk 6 Lab
School: DeVry Chicago
Course: STATISTICS
zScore 3.50 3.25 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 Area to the Left 0.00023 0.00058 0.00135 0.00298 0.00621 0.01222 0.02275 0.04006 0.06681

MATH 221 Wk 4 Lab
School: DeVry Chicago
Course: STATISTICS
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MATH 221 Probability Example
School: DeVry Chicago
Course: STATISTICS
# of things 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 N prob of X 0.056314 0.187712 0.281568 0.250282 0.145998 0.058399 0.016222 0.00309 0.000386 2.9E005 9.5E007 Err:502 Err:502 Err:502 Err:502 Err:502 Err:502 Err:502 Err:502 Err:502 Err:5

MATH221_W2 LabData Excel
School: DeVry Chicago
Course: Statistics For Decision Making
Drive State 36 MI 80 NV 76 PA 88 CA 54 FL 6 OR 4 NY 55 OH 36 TX 71 MI 25 GA 28 NY 73 FL 63 PA 78 CA 94 KY 36 OR 25 CA 76 NY 80 CA Temp 51 52 50 53 51 51 52 54 55 53 52 51 58 57 52 57 54 58 52 54 Rank 8 7 9 5 4 2 7 6 8 9 3 4 6 5 1 2 5 7 8 9 Height 61 69 71

MATH221 Wk1_Part_A[1]
School: DeVry Chicago
Course: STATISTICS
Week1:Chapter1 Collecting, Organizing and Presenting Data Collecting, Organizing and Presenting Data s s s s s s s s Theabilitytounderstandandapplythedecisionmakingtoolsusedinabusiness environmentcanbeatremendousbenefitformeetingthedynamicchallengesofwork

Week1_Part_B
School: DeVry Chicago
Course: Statistics For Decision Making
Week 1: Chapter 2, 1st Part Click to edit Master subtitle style Descriptive Statistics: Visual and Numerical Descriptions Graphs and Charts The most common technique for describing data is to chart or graph the data set and examine these "pictures" for pa

Tb3
School: DeVry Chicago
CHAPTER3 STRESSANDHEALTHPSYCHOLOGY EXPANDED LEARNING OUTCOMES Textbook Core LO: What is stress and what are its major sources and effects? 1. Differentiate between stress and stressors, eustress and distress (p. 9495). 2. Describe research findings rel

1118705math Quiz 1
School: DeVry Chicago
1. (TCO4)Threemembersofaclubwillbeselectedtoserveasofficers.Thefirstpersonselectedwill bepresident,thesecondpersonwillbevicepresidentandthethirdwillbesecretary/treasurer.Howmany wayscantheseofficersbeselectedifthereare30clubmembers? (Points: 5) 24,360 406

9.2
School: DeVry Chicago
#2,page168:Whataresomeexamplesofwaysinwhichobservationallearninghasbenefitedyouinyourlife?Are thereinstancesinwhichobservationallearninghasworkedtoyourdisadvantage? InstallingaNIC(networkinterfacecard)&aVideoCardonacomputermotherboardareexamplesinwhichIle

_Week2Lab_Exceldd
School: DeVry Chicago
Welcome to Our First Lab for MATH 221! These labs are designed to show you how to use Excel to help with statistical analysis. If you are familiar with Excel, that is great! If not, don't worry, we'll show you everything you need to know to successfully w

_Week_4_Lab11
School: DeVry Chicago
Math 221 Week 4 Lab Submitted by: Part 1. CrossReference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P(high calorie)? a. Phigh calorie=number of high calorie cerealstotal number of ceri

_Week2Lab_Excel
School: DeVry Chicago
Welcome to Our First Lab for MATH 221! These labs are designed to show you how to use Excel to help with statistical analysis. If you are familiar with Excel, that is great! If not, don't worry, we'll show you everything you need to know to successfully w

Week2lab
School: DeVry Chicago
Math 221 Week 2 Lab Kamall Damrah Part 1. Random Sampling Ordered Sample 1 AA 6 AE 12 AK 15 AN 17 AP 22 AU 25 AX 28 BA 29 BB 34 BG 40 BM 44 BQ 47 BT 55 CB 58 CE 64 CK 70 CQ 73 CT 74 CU 75 CV Part 2. Cereal and Fiber Type Fiber Type Bar Chart Fibre Type Ba

Copy Of Excel_Template_Week6Lab
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
zScore 3.50 3.25 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 Area to the Left 0.00023 0.00058 0.00135 0.00298 0.00621 0.01222 0.02275 0.04006 0.06681

Standard Costing Example
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
S tandard Costing Example SETTING STANDARD COSTS A standard can be defined as a benchmark or "norm" for measuring performance. The broadest application of the standard cost idea is found in manufacturing fi rms. Such f i rms often develop standards in det

ChiSquared Distributions
School: DeVry Chicago
Course: STATISTICS FOR DECISION MAKING
CHISQUARED DISTRIBUTIONS What is a chisquared distribution? We have previously discussed the Standard Normal curve and the associated distribution. Z was the term for the standard normal random variable. How is distributed? The answer is a chisquared d

Contingency Table Tutorial
School: DeVry Chicago
Course: Math 221
contingencytables 1stgraderandIceCreampreference vanilla chocolate sum girls 27 39 66 boys 11 39 50 sum 38 78 116 P(girl) P(chocolate) P(chocolateorisagirl) P(vanillagiventhatitsaboy) P(girlgiventhattheylikechocolate) P(girlthatlikevanilla) 0.57 (66/116)

Copy Of Discreet Probability Distribution
School: DeVry Chicago
Course: Math 221
Discreetprobabilitydistribution numberofcarsfolksownatbrent'sbuilding x 0 1 2 3 4 Sum p(x) 0.05 0.26 0.37 0.29 0.03 1 X*p(x) 0 0.26 0.74 0.87 0.12 1.99 x^2 0^2=0 1^2=1 2^2=4 3^2=9 4^2=16 x^2*p(x) 0 0.26 1.48 2.61 0.48 4.83 mean variance standarddeviation

Final_Exam_study_guide
School: DeVry Chicago
Course: Statistics For Decision Making
SEC 280 Principles of Information Security Final Exam Study Guide: This study guide will help you to prepare for the final exam. It contains the concepts that have been covered from week's 17. Final Exam Times: The exam can be accessed on June 18 at 12:

Practice Quiz Week 4
School: DeVry Chicago
Course: Statistics For Decision Making
Math 221 Quiz Review for Weeks 3 and 4 1. 2. State whether the variable is discrete or continuous. The # of keys on each student's key chain. Decide whether the experiment is a binomial experiment. Explain why by citing the properties of binomial experime

MATH221 Poisson Example
School: DeVry Chicago
Course: STATISTICS
# of things 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Poisson Distribution 0.000167 0.001449 0.006304 0.018283 0.039765 0.069192 0.100328 0.124693 0.135604 0.131084 0.114043 0.090197 0.065393 0

MATH221 POISSON CHART
School: DeVry Chicago
Course: STATISTICS
mean 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 0 0.006737947 0.033689735 0.0842243375 0.1403738958 0.1754673698 0.1754673698 0.1462228081 0.104444863 0.0652780393 0.0362655774 0.0181327887 0.0082421767 0.0034342403 0.001

MATH221 BINOMIAL CHART
School: DeVry Chicago
Course: STATISTICS
# of things 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 N prob of X 0.109419 0.255311 0.283679 0.199626 0.099813 0.037707 0.011172 0.00266 0.000517 8.3E005 1.1E005 1.2E006 1.1E007 8.8E009 5.6E010 2.9E011 1.2E012 3.9E014 9.7E016 1.7E

MATH 221Wk 2 Lab
School: DeVry Chicago
Course: STATISTICS
Welcome to Our First Lab for MATH 221! These labs are designed to show you how to use Excel to help with statistical analysis. If you are familiar with Excel, that is great! If not, don't worry, we'll show you everything you need to know to successfully w

1914360w4+w5
School: DeVry Chicago
Course: Statistics
Statistics Lab Week 4 Calculating Binomial Probabilities Open a new MINITAB worksheet. We are interested in a binomial experiment with 10 trials. First, we will make the probability of a success . Use MINITAB to calculate the probabilities for this dist

Solutions 2009 4th Edition.
School: DeVry Chicago
CONTENTS CONTENTS Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Appendix A Appendix C Activities Case Studies Uses and Abuses Real StatisticsReal Decisions Technologies Introduction to Stat

Z_E_week6lab
School: DeVry Chicago
Math 221 Week 6 Lab Submitted by: Eric Zakrzewski Part 1. Normal Distributions and Birth Weights in America A. It appears to be 7.69 or 40 weeks due to the mean line placement B. It appears to be 5.71 or 3235 weeks due to the mean line placement C. It ap

Z_E_week4lab
School: DeVry Chicago
Math 221 Week 4 Lab Submitted by: Eric Zakrzewski Part 1. CrossReference Tables and Probability 1. What is the probability that the cereal would be high calorie? In other words, what is P(high calorie)? P = 53/84 or about 63% 2. What is the probability t

Z_E_week2lab
School: DeVry Chicago
Math 221 Week 2 Lab Submitted by: Eric Zakrzewski Part 1. Random Sampling Using the Data Analysis ToolPak I chose Sampling. The input range are the numbers I gave the accounts (174). You then input 20 for number of samples and the output range. Once the

Template_of_Week4Lab_Excel
School: DeVry Chicago
Fiber Type High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber High Fiber Me

Template_of_Week2Lab_Excel
School: DeVry Chicago
Welcome to Our First Lab for MATH 221! These labs are designed to show you how to use Excel to help with statistical analysis. If you are familiar with Excel, that is great! If not, don't worry, we'll show you everything you need to know to successfully w

Practice Quiz Week 6
School: DeVry Chicago
Course: Statistics For Decision Making
Math 221 Quiz Review for Weeks 5 and 6 1. 2. Find the area under the standard normal curve between z = 1.6 and z = 2.6. A business wants to estimate the true mean annual income of its customers. It randomly samples 220 of its customers. The mean annual in

Kofman_v_week2lab
School: DeVry Chicago
Course: Statistics For DecisionMaking
Math 221 Week 2 Lab Submitted by: Vitaliy Kofman Part 1. Random Sampling It's important for auditors to randomly select files to audit because it will save time and will give them a good overall idea how most of the files are doing. By using the random sa