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STAT 1100Q Study Guide - Spring 2019, Comprehensive Final Exam Notes - National Highways Of Pakistan, Google Docs, Sheets And Slides, Google


Department
Statistics
Course Code
STAT 1100Q
Professor
Zhanna Pozdnyakova
Study Guide
Final

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STAT 1100Q

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1/29/2019 stats notes lecture 1 - Google Docs
https://docs.google.com/document/d/1fpNgzf35Hdy-QdxDarm2L0dvYLszFJbzDODTppq4gcM/edit 1/3
1/22/19(Lecture1)
Chapter1Data,GraphicalDescriptiveTechniques
 Therearetwotypesofdata:
 categoricaldata(symbols;i.e.grades,gender,etc)
 numericaldata(numbers;i.e.scores,age,income,etc)
GraphicalTechniquesforDescribingCategoricalData
1. FrequencyTable
2. BarChart(FrequencyorRelativeFrequency)
3. PieChart
FrequencyTableforExamData(exampledataset)[GradesR]
Categories(letter
grade)
A
B
C
D
I
Total
ActualCountof
Frequency(#of
scoresofacertain
lettergrade)
2
11
6
4
2
25
RelativeFrequency
(percentageoutof
total#ofgrades)
8%
44%
24%
16%
8%
100%
 relativefrequency=actualcount/samplesizex100%
 samplesize=totalnumberofobservationsindataset(representedbylowercase"n")
 n=25
A=2/25x100%=8%
B=11/25x100%=44%
C=6/25x100%=24%
D=4/25x100%=16%
I=2/25x100%=8%
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1/29/2019 stats notes lecture 1 - Google Docs
https://docs.google.com/document/d/1fpNgzf35Hdy-QdxDarm2L0dvYLszFJbzDODTppq4gcM/edit 2/3
BarChart(FrequencyorRelativeFrequency)
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