$1$ 'Data mining" has a broad meaning but more typically refers to data description, whereas "data analytics" refers to the types of analyses used to make predictions.

$2$ Which of the following are accurate? $($Select all that apply.$)$

Data allows us to determine the true cause of business success.

Organic food causes autism.

Data science in the organization context is the study of implied cause of business success.

Data allows provides supporting evidence for cause$/$effect relationships, although it cannot empirically prove them.

$3$ Tableau, Excel, and Azure ML Studio are all used for which layer of the BI stack?

Data sources

Presentation to end user

Data warehouse

ETL

$4$ ETL may include which of the following? $($Select all that apply.$)$

cleaning and transforming data

purchasing$/$acquiring data from third$-$party sources

loading data into some type of a data warehouse or lake

aggregating data to higher levels of abstraction $($e$.$g$.,$ daily sales total rather than individual sales$)$

copying data from operational databases

$5$ Which of the following are true of analytical databases? $($Select all that apply.$)$

Analytical databases store the detailed transaction$-$level data required for business processes.

Analytical databases are separate from operational databases so that analytics will not interfere with business processes.

Analytical databases may also be known as data warehouses.

Analytical databases contain a copy $($possibly in summarized form$)$ of the data originally stored in operational databases.