Chapter 4 - PBA

Which of these is the first step in data science project life cycle?

• Data Preparation

• Understanding business requirement

• Hypothesis and modelling

• Data aquisition

What do you call the step that involves evaluation of completeness, accuracy, consistency and potential bias in data?

• Data confirmation
• Data authentication
• Data verification
• Data validation (data quality assessment)

Cleaning the data by handing missing values and inconsistencies is called as data exploration.

• True

• False

This step involves testing if the model works well in controlled environment.

• Lab validation

• In the wild Validation

____ is the version of a new model which allows a team to collect maximum amount of validated learning about a model's effectiveness with least effort

____ is a specific statement of guess or assumption

This technology involves use of virtual objects in real world.

• Virtual reality

• Augmented reality

• Mixed reality

• Extended reality

A method of AI that teaches computers to process data the way human brain does is called____