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Google Advanced Data Analytics Professional Certificate • STUDY MODE

TEST YOUR KNOWLEDGE: PACE IN MACHINE LEARNING: THE PLAN AND ANALYZE STAGES

QUESTION 1 OF 3

Fill in the blank: Feature engineering enables data professionals to take _____ and extract features from it.

A
raw dataCorrect Answer
B
delimited text
C
a dynamic dashboard
D
a code chunk
Explanation:

Feature engineering enables data professionals to take raw data and extract certain attributes from it. It also enables them to select, extract, or transform characteristics and properties from raw data.

QUESTION 2 OF 3

What term describes the process of modifying existing features in a way that improves accuracy when training a model?

A
Feature transformationCorrect Answer
B
Feature improvement
C
Feature extraction
D
Feature selection
Explanation:

Feature transformation describes the process of modifying existing features in a way that improves accuracy when training the model.

QUESTION 3 OF 3

A class imbalance occurs when a dataset has a predictor variable that contains an equal number of instances of all possible outcomes.

A
True
B
FalseCorrect Answer
Explanation:

A class imbalance occurs when a dataset has a predictor variable that contains many more instances of one outcome than another.

Ready to test your recall?

Fill in the blank: Feature engineering enables data professionals to take _____ and extract features from it.

A
raw data
B
delimited text
C
a dynamic dashboard
D
a code chunk

How confident are you in this answer?