APM Data science and technology

Analytics that explains why something happened is:

• 1 Diagnostic analytics
• 2 Prescriptive analytics
• 3 Descriptive analytics
• 4 Predictive analytics

Predicting next quarter's demand from past sales and seasonal data is an example of:

• 1 Descriptive analytics
• 2 Predictive analytics
• 3 Diagnostic analytics
• 4 Prescriptive analytics

A data warehouse is:

• 1 A central store of integrated data from several systems used for analysis
• 2 A firewall
• 3 A paper archive
• 4 A single transaction system

Which of the following is the main risk of a machine learning model used to approve loans?

• 1 It is too transparent
• 2 It is always accurate
• 3 It may reproduce bias that is in the historical data
• 4 It cannot process data

Enterprise resource planning systems help performance management mainly by:

• 1 Removing the need for controls
• 2 Replacing management
• 3 Making data private
• 4 Integrating data from many functions into one system

Which statement about correlation is correct?

• 1 A correlation of zero means the data is wrong
• 2 A strong correlation does not prove that one variable causes the other
• 3 A strong correlation proves causation
• 4 A correlation cannot be negative

Governance of a data analytics function should cover:

• 1 Data quality, model validation, privacy and ethical use
• 2 Only the choice of programming language
• 3 Only the cost of software
• 4 Only storage