ISDS 4141 McGraw-Hill Hw ch. 1 question well answered graded A+

ISDS 4141 McGraw-Hill Hw ch. 1
question well answered graded A+

True - correct answer ✔✔True or false: A 'variable' is defined as when a characteristic of interest
differs in kind or degree among various observations.



Population - correct answer ✔✔A ________ consists of all observations or items of interest in
an analysis



Nominal - correct answer ✔✔Gender is an example of which measurement scale?

Ratio

Interval

Ordinal

Nominal



True - correct answer ✔✔True or false: The difference between cross-sectional and time series
data is whether the data is evaluated at a single point in time or multiple points in time



Meteorological data - correct answer ✔✔Which of the following is an example of machine-
generated data?

Mobile Phone conversations

Meteorological data

Information on price

Social media data

, Fixed-width - correct answer ✔✔In which data format does each column start and end at the
same place in every row?

Fixed-width

Fixed

Delimited



Velocity, Volume, Variety - correct answer ✔✔Which of the following 'V's" are considered to be
the 3 V's which are characteristics of big data?

Multiple select question.

Velocity

Valuable

Volume

Variety



False - Reason: Only HTML tags conform to international standards - correct answer ✔✔True or
false: XML and HTML markup tags both conform to standards maintained by the World Wide
WEb Consortium.



Course Grade

Marital Status - correct answer ✔✔Select all that apply

Examples of categorical variables include: (Select all that apply!)

Multiple select question.

Income per year

Weight

Course Grade

Marital Status