Filters
Question type

Study Flashcards

Business Intelligence (BI)reporting systems are used to filter data,sort data,group data,and make simple calculations based on the data.

Correct Answer

verifed

verified

Here is Market Basket data for 1,000 transactions at a Drug Store.All transactions involve 1 or 2 drugs.Use the table below to answer the following questions. Here is Market Basket data for 1,000 transactions at a Drug Store.All transactions involve 1 or 2 drugs.Use the table below to answer the following questions.    -Refer to the table above.What is the definition of support for Drug A and Drug B? A) The probability that Drug A will be purchased. B) The probability that Drug B will be purchased. C) The probability that both Drug A and Drug B will be purchased. D) The probability that Drug A will be purchased given that Drug B has been purchased. -Refer to the table above.What is the definition of support for Drug A and Drug B?


A) The probability that Drug A will be purchased.
B) The probability that Drug B will be purchased.
C) The probability that both Drug A and Drug B will be purchased.
D) The probability that Drug A will be purchased given that Drug B has been purchased.

Correct Answer

verifed

verified

Market basket analysis as described in the text uses the technique of conditional probabilities.

Correct Answer

verifed

verified

RFM analysis is a way of analyzing and ranking customers based on on-line survey data.

Correct Answer

verifed

verified

The "R" in RFM analysis stands for ________.


A) rank
B) recent
C) relationship
D) readiness

Correct Answer

verifed

verified

Why is operational data sometimes unusable for Business Intelligence use?

Correct Answer

verifed

verified

Data in operational databases can suffer...

View Answer

In market basket analysis,lift is confidence divided by support.

Correct Answer

verifed

verified

What is a reporting system?

Correct Answer

verifed

verified

A reporting system is one of the main ca...

View Answer

OLAP stands for ________.


A) Online Analytical Processing
B) Offline Analytical Processing
C) Online Analysis Process
D) Offline Analytical Process
E) Lazy,Old And Particular

Correct Answer

verifed

verified

Report modes include dynamic and static.

Correct Answer

verifed

verified

What is a data warehouse?

Correct Answer

verifed

verified

A data warehouse is a non-operational da...

View Answer

A data warehouse database differs from an operational database because ________.


A) data warehouse data are not stored in tables
B) data warehouse databases do not have metadata
C) data warehouse data are often stored in a dimensional database
D) efficiency does not matter in a data warehouse

Correct Answer

verifed

verified

Reports that rely on the most current data when they are prepared are called dynamic reports.

Correct Answer

verifed

verified

The reports generated by a reporting system can be delivered in all of the following media except ________.


A) Paper
B) Smoke signals
C) Digital dashboard
D) E-mail

Correct Answer

verifed

verified

A data mart differs from a data warehouse in all the following ways except ________.


A) data marts use more operational data
B) it deals with a particular component or functional area of the business
C) data mart users do not have the data management expertise of data warehouse employees
D) it has a smaller database

Correct Answer

verifed

verified

We have obtained access to the company's operational data.We have been asked to produce a report with an item by item analysis of sales,but the only sales figure available is the total sale value for each order.This is an example of ________.


A) dirty data
B) inconsistent data
C) nonintegrated data
D) a "wrong format" problem

Correct Answer

verifed

verified

We have obtained access to the company's operational data.We examine 50 records for customers with phone numbers that should use the current area code of 345.Of these 50 records,we find 10 that still use an older area code of 567.This is an example of ________.


A) dirty data
B) inconsistent data
C) non-integrated data
D) a "wrong format" problem

Correct Answer

verifed

verified

Which of the following is a common unsupervised data mining technique?


A) Cluster analysis
B) Regression analysis
C) RFM analysis
D) QBE queries

Correct Answer

verifed

verified

Data mining uses sophisticated statistical and mathematical techniques to perform what-if analyses,to make predictions,and to facilitate decision making.

Correct Answer

verifed

verified

Business Intelligence (BI) reporting systems can do all of the following operations except ________.


A) filter data
B) group data
C) modify data
D) sort data

Correct Answer

verifed

verified

Showing 61 - 80 of 82

Related Exams

Show Answer