BADM 211 TEST 1 QUESTIONS AND ANSWERS
The term "business analytics" may be best defined as - Answers :the practice and art of
bringing quantitative data to bear on decision-making
The term "business intelligence" may be best defined as - Answers :reporting and data
visualization
Data mining adds ________ to data visualization and exploratory analyses. - Answers
:statistical and machine learning methods that inform decision making
Machine learning refers to algorithms that - Answers :learn directly from data
Which of the
following is not a characterization of Big Data? - Answers :velocity, volume, variety,
veracity
Which of the following is not in the list of skills for a data scientist? - Answers :statistics,
machine learning, math, programming, business, and IT
A categorical variable may be best defined as a - Answers :fixed, outcome, output,
dependent variable
A predictor may be best defined as a(n) - Answers :input, independent variable
The conditional probability that event A will occur given that event B has already
occurred may be written as - Answers :P(A l B)
Which of the following is not a term for "observation"? - Answers :instance, sample,
example, case, record, pattern, row
Which of the following is NOT an example of classification? - Answers :placing data in
categories/classes
Which of the following is an example of prediction? - Answers :predict value of a
continuous, numerical variable
Online recommendation systems use an approach known as - Answers :collaborative
filtering
The performance of data mining algorithms is often improved by limiting variables and
by - Answers :data reduction, grouping large numbers of records into homogeneous
groups
Affinity analysis is used by grocery stores to determine effective - Answers
:recommender systems
The term "business analytics" may be best defined as - Answers :the practice and art of
bringing quantitative data to bear on decision-making
The term "business intelligence" may be best defined as - Answers :reporting and data
visualization
Data mining adds ________ to data visualization and exploratory analyses. - Answers
:statistical and machine learning methods that inform decision making
Machine learning refers to algorithms that - Answers :learn directly from data
Which of the
following is not a characterization of Big Data? - Answers :velocity, volume, variety,
veracity
Which of the following is not in the list of skills for a data scientist? - Answers :statistics,
machine learning, math, programming, business, and IT
A categorical variable may be best defined as a - Answers :fixed, outcome, output,
dependent variable
A predictor may be best defined as a(n) - Answers :input, independent variable
The conditional probability that event A will occur given that event B has already
occurred may be written as - Answers :P(A l B)
Which of the following is not a term for "observation"? - Answers :instance, sample,
example, case, record, pattern, row
Which of the following is NOT an example of classification? - Answers :placing data in
categories/classes
Which of the following is an example of prediction? - Answers :predict value of a
continuous, numerical variable
Online recommendation systems use an approach known as - Answers :collaborative
filtering
The performance of data mining algorithms is often improved by limiting variables and
by - Answers :data reduction, grouping large numbers of records into homogeneous
groups
Affinity analysis is used by grocery stores to determine effective - Answers
:recommender systems
