Data Anlysis

QuizÂ 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

120sEditDelete - 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

120sEditDelete - Q3
Which of the following is not a component of Exploratory Data Analysis?

Outlier detection

Summarizing data

Statistical analysis

Model hyperparameter tuning

120sEditDelete - 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

120sEditDelete - Q5
Which component should be used for bivariate outlier detection?

"Outlier filter"

"Multivariate Outlier Detection"

"R Correlation Matrix"

"Basic Statistics for Each Data"

120sEditDelete - 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"

120sEditDelete