Data imputation - Samenvattingen, Aantekeningen en Examens
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Introduction to Statistics using R exam with complete solution
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What is inferential statistics? 
sample > measure values > make inference about whole population 
 
 
What is causal inference? 
prediction of intervention, missing data imputation 
 
 
 
In causality, what are all paths that start with an arrow pointing to the independent variable and end with an arrow pointing to the dependent variable (to be controlled) called? 
back-door paths 
 
 
How can I block back-door paths? 
include 3rd variables in regression models, matching based on confoundi...
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ISYE 6501 Midterm 2 _ Intro Analytics Modeling - ISYE-6501_O01-OAN_O01_MSA Georgia Institute Of Technology ISYE 6501
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ement is a more accessible alternative to drag & drop reordering. Pres 
INSTRUCTIONS FOR QUESTIONS 1-5 
For each of the following five questions, select the probability distribution that could best be 
used to model the described scenario. Each distribution might be used, zero, one, or more 
than one time in the five questions. 
These scenarios are meant to be simple and straightforward; if you're an expert in the field 
the question asks about, please do not rely on your expertise to fill in a...
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ISYE 6501 - Midterm 1 ALL SOLUTION & ANSWERS 100% CORRECT SPRING FALL-2023/24 EDITION GUARANTEED GRADE A+
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What do descriptive questions ask? 
 
What happened? (e.g., which customers are most alike) 
 
What do predictive questions ask? 
 
What will happen? (e.g., what will Google's stock price be?) 
 
What do prescriptive questions ask? 
 
What action(s) would be best? (e.g., where to put traffic lights) 
 
What is a model? 
 
Real-life situation expressed as math. 
 
What do classifiers help you do? 
 
differentiate 
 
What is a soft classifier and when is it used? 
 
In some cases, ther...
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ISYE 6501 - Midterm 1 2024 with complete verified solutions.
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What do descriptive questions ask? 
What happened? (e.g., which customers are most alike) 
 
 
What do predictive questions ask? 
What will happen? (e.g., what will Google's stock price be?) 
 
 
 
Brainpower 
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What do prescriptive questions ask? 
What action(s) would be best? (e.g., where to put traffic lights) 
 
 
What is a model? 
Real-life situation expressed as math. 
 
 
What do classifiers help you do? 
differentiate 
 
 
What is a soft classifier and when is it...
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Georgia Tech Est ISYE 6501 Lecture Transcripts, Comprehensive masterpiece
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Georgia Tech Est ISYE 6501 Lecture Transcripts, Comprehensive masterpiece. 
Document Content and Description Below 
Est ISYE 6501 Lecture Transcripts About This Document This document was originally created in the summer of 2017 and is maintained collaboratively through the efforts of the students of edX GTx ISY E 6501 using transcripts and screenshots from the video lectures. You are strongly encouraged to improve the formatting, layout, add or adjust images, bold key words, and even condense c...
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GEORGIA INSTITUTE OF TECHNOLOGY ISYE 6501 FULL COURSE NOTES
- College aantekeningen • 102 pagina's • 2023
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Week 1 
 
Why Analytics?	6 
Data Vocabulary	7 
Classification	8 
Support Vector Machines	11 
Scaling and Standardization	13 
k-Nearest Neighbor (KNN)	13 
Week 2 
Model Validation	16 
Validation and Test Sets	17 
Splitting the Data	18 
Cross-Validation	20 
Clustering	21 
Supervised vs. Unsupervised Learning	22 
Week 3 
Data Preparation	25 
Introduction to Outliers	25 
Change Detection	27 
Week 4 
Time Series Data	31 
AutoRegressive Integrated Moving Average (ARIMA)	34 
Generalized Autoregressive...
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ISYE 6501 Midterm Quiz 2-lok
- Tentamen (uitwerkingen) • 28 pagina's • 2022
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Midterm Quiz 2 - Verified MM Learners 
Midterm Quiz 2 due Apr 12, 2021 1500 HKT Completed 
90 Minute Time Limit 
Instructions 
Work alone. Do not collaborate with or copy from anyone else. 
Work the problems in any order you wish, but submit each answer before 
ending the exam. 
You may use any of the following resources: 
One sheet (both sides) of handwritten (not photocopied or scanned) notes 
If any question seems ambiguous, use the most reasonable interpretation (i.e. 
don't be like Calvin)...
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WGU C743 Data Mining I exam 2023 with 100% correct answers
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Bivariate Statistics - Use of Contingency Table correct answersUsed to detect incompatibilities between variables, links between the dependent ('target') variable and the independent variables and their interactions, in order to eliminate the variables having no effect on the dependent variable; 
links between the independent variables, which must be avoided in some methods, such as linear and logistic regression. 
 
Detection of Rare Variables correct answersRare values can create bias in fac...
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Midterm Quiz 2 - GT Students and Verified MM Learners | Midterm Quiz 2 | ISYE6501x Courseware | graded A+
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Questions 2a, 2b 
5.0/10.0 points (graded) 
Five classi�cation models were built for predicting whether a neighborhood will soon see a large rise in home prices, based on public elementary school ratings and other factors. The training data set was missing the school rating variable for every new school (3% of the data points). 
 
Because ratings are unavailable for newly-opened schools, it is believed that locations that have recently experienced high population growth are more likely to have...
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Midterm Quiz 2 - GT Students and Verified MM Learners with complete solutions
- Tentamen (uitwerkingen) • 12 pagina's • 2023
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Questions 2a, 2b 
5.0/10.0 points (graded) 
Five classification models were built for predicting whether a neighborhood will soon see a large rise in home prices, based on public elementary 
school ratings and other factors. The training data set was missing the school rating variable for every new school (3% of the data points). 
Because ratings are unavailable for newly-opened schools, it is believed that locations that have recently experienced high population growth are 
more likely to have ...
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