Data Anlysis
Quiz by tinto alencherry
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- Q1
What are the objectives of exploratory data anlalysis
Uncover a parsimonious model, one which explains the data with minimum number of predictor variables.
Check for missing data and other mistakes
Gain maximum insight into the data set and its underlying structure
All of the above
120s - Q2
Which of the following is not true about Exploratory Data analysis
Does not provide insight into the data
Generates a posteriori hypothesis
Deals with unknowns
Discovers new knowledge
120s - Q3
Which of the following is not a component of Exploratory Data Analysis?
Outlier detection
Summarizing data
Statistical analysis
Model hyperparameter tuning
120s - Q4
Which is the correct sequence of steps in modelling
Data Cleaning -> Data Exploration -> Present Results -> Model Building
Data Exploration -> Data Cleaning -> Model Building -> Present Results
Data Cleaning -> Model Building -> Data Exploration -> Present Results
Data Exploration -> Data Cleaning -> Present Results -> Model Building
120s - Q5
Which component should be used for bivariate outlier detection?
"Outlier filter"
"Multivariate Outlier Detection"
"R Correlation Matrix"
"Basic Statistics for Each Data"
120s - Q6
Which component creates array of scatter plots indicating multiple data relationships
"R Correlation Matrix"
"R Pairs Plot"
"Multivariate Outlier Detection"
"Basic Statistics with Moving Window"
120s