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Business Analytics Exam 1 questions with right actual answers.
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Business Analytics Exam 1 questionswith right actual answers.
Big data ANS - The collection and analysis of data sets so large and complex that traditional methods
typically brought to bear on the problem would be overwhelmed
Business analytics ANS - The process of using statistical analysis and modeling to drive business
decisions
Case ANS - A case is an individual about whom or which we have data
Categorical/qualitative variable ANS - A variable that means categories is called categorical or
qualitative, weather with words or numerals
Context ANS - The context ideally tells who was measured, what was measured, how the data was
collected, where the data were collected, and when and why the study was performed
Cross-sectional data ANS - Data taken from situations that very overtime but measured at a single time
instant is said to be a cross-section of the time series
Data ANS - Recorded values weather numbers are labels, together with their context
Data mining ANS - The process of using a variety of statistical tools to analyze large data bases or data
where houses
Data table ANS - And arrangement of data in which each row represents a case and each column
represents a variable
Data warehouse ANS - A large database of information collected by a company or other organization
usually to record transactions that the organization makes, but also used for analysis via data mining
, Experimental unit ANS - An individual in a study for which or for whom data values are recorded.
Human experimental units are usually called subjects or participants
Identifier variable ANS - A categorical variable that records and unique value for each case, used to
name or identify it
Meta-data ANS - Auxiliary information about variables in a database, typically including how, when, and
where, and possibly why, the data were collected; who each case represents; and the definition of all
variables
Nominal variable ANS - The term nominal can be applied to a variable whose values are used only to
name categories
Ordinal variable ANS - The term ordinal can be applied to a variable whose categorical values possess
some kind of order
Participant ANS - A human experimental unit, also called a subject
Quantitative variable ANS - A variable in which the numbers are values of measured quantities with
units
Record ANS - Information about an individual in a database
Relational database ANS - A relational database stores and retrieves information, within the database
information is kept in data tables that can be related to each other
Respondent ANS - Someone who answers or responds to a survey
Spreadsheet ANS - A spreadsheet is a layout design for accounting that is often used to store and
manage data tables, and example is excel
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