What is the analytics type for procedures that explore the current data to determine why an outcome
has happened? - Answers diagnostic
What is the analytics type for procedures that work to identity the best possible action steps given
constraints or changing conditions? - Answers prescriptive
Regression analysis typically involves the following steps except:
a. identify the variables
b. set boundaries or thresholds
c. identify the parameters
d. determine the functional form of the relationship - Answers b
Understand and predicting inventory obsolescence is an important determination for retail companies
when using competitors selling prices to estimate the inventory obsolescence reserve, the inventory
obsolescence reserve represents which variable - Answers dependent variable
As discussed in class, Aera is an example cognitive technology that does all of the following except:
a. understands, recommends, predicts, and acts
b. Enables decision intelligent
c. Connects with ur business and autonomously orchestrates your operations
d. Facilitates interpersonal communication and collaboration - Answers d.
Which approach to data analytics attempts to predict for each unit the numerical value of some
variable? - Answers regression
When constructing a model to assess the credit risk of individual borrowers, which of the following
variables is least likely to be considered as an independent factor?
a. employment history of the borrower
b. credit utilization ratio
c. number of transactions on the borrower's savings account
d. frequency of bank interactions - Answers d.
BLANK is a set of data used to assess the degree and strength of the predicted relationship
a. training data
b. unstructured data
c. structured data
d. test data - Answers test data
These data are organized and reside in a fixed field with a record or a file. Such data are generally
contained in a relational database or spreadsheet and are readily searchable by search algorithms.
The term matching this definition is:
a. training
b. unstructured
c. structured
d. test - Answers c
An observation about the frequency of leading digits in many real-life sets of numerical data is called:
- Answers Benford's Law
Which approach to Data Analytics attempts to predict a relationship between two data items? -
Answers link prediction
In general, the more complex the model, the greater the chance of:
a. overfitting the data
b. underfitting the data
c. pruning the data
d. a more accurate prediction of the data - Answers overfitting the data
In general, the simpler the model, the greater the chance of:
a. overfitting the data