Module 1
Quantitative analysis is another name for what?
a) algebra
b) mathematics
c) statistics
d) probability - ANSWER-c) statistics
If a dataset is presented on a scale of hours per week, which scale of measurement is
being used?
a) nominal
b) ordinal
c) interval
d) ratio - ANSWER-d) ratio
The use of data, statistical and quantitative analysis, explanatory and predictive models,
and fact-based management to drive decisions and add value is called ________.
a) analytics
b) logic
c) statistics
d) data mining - ANSWER-a) analytics
Analytics makes use of all these things to drive decision making and add value.
First, second, third, fourth... What kind of data does this represent?
a) continuous data
b) nominal data
c) discrete data
d) ordinal data - ANSWER-d) ordinal data
Ordinal data places data objects into an order according to some quality.
This kind of data is also called categorical data.
, a) continuous data
b) nominal data
c) discrete data
d) ordinal data - ANSWER-b) nominal data
Nominal data is used to put data into categories, which is why it is also known as
categorical data.
Assume you are measuring the various lengths of used pencils, and you collect the
following data points (in inches): 1.37, 2.65, 2.78, 3.46, 3.91. What kind of data are
these data points?
a) continuous data
b) nominal data
c) discrete data
d) ordinal data - ANSWER-a) continuous data
In a set of continuous data, a point can lay along any point in a range of data.
A data point that can only take on whole values and has boundaries is called what?
a) continuous
b) nominal
c) discrete
d) ordinal - ANSWER-c) discrete
Discrete data points are always whole integers.
If a measure is consistent and repeatable it is said to be __________.
a) good
b) correct
c) valid
d) reliable - ANSWER-d) reliable
To be considered reliable, a measure must be repeatable in multiple locations under
diverse conditions.
A small group from which you make an inference about an entire population is called a
__________.
a) sample