DSOM 3&4 EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED
The charts that are helpful in making comparisons between categorical variables
are
bar charts and column charts.
A time series plot is also known as a
line chart.
Observation refers to the
set of recorded values of variables associated with a single entity.
To summarize and analyze data with both a crosstabulation and charting, Excel
typically pairs
PivotCharts with PivotTables.
Which statement is true of an association rule?
It is ultimately judged on how actionable it is and how well it explains the relationship
between item sets.
Suppose we had a data set of from a call center where customers were asked to
choose between the following three options: hear account information, billing
questions, and customer service. Using the given order of the three options, and
using 0-1 dummy variables to encode the categorical variables, which of the
following combinations would yield an entry "customer service"?
. 001
WITH COMPLETE SOLUTIONS VERIFIED
The charts that are helpful in making comparisons between categorical variables
are
bar charts and column charts.
A time series plot is also known as a
line chart.
Observation refers to the
set of recorded values of variables associated with a single entity.
To summarize and analyze data with both a crosstabulation and charting, Excel
typically pairs
PivotCharts with PivotTables.
Which statement is true of an association rule?
It is ultimately judged on how actionable it is and how well it explains the relationship
between item sets.
Suppose we had a data set of from a call center where customers were asked to
choose between the following three options: hear account information, billing
questions, and customer service. Using the given order of the three options, and
using 0-1 dummy variables to encode the categorical variables, which of the
following combinations would yield an entry "customer service"?
. 001
