WGU: Domain: Mathematics Content (5-9)
Subdomain: Part IV: Statistics and Probab /
population, Sample, Subset of a population ,
Statistics, Statistics a collection of methods
Question Answer
the number of possible values is either finite number or a
Discrete Data
countable number # of eggs laid by a chicken
result from infinitely many possible values that correspond to
Continuous
some continuous scale that covers a range of values without
(numerical)data
gaps, or interuptions. amount of milk from a cow
Quantative data representing counts or measurements. weights of super models
Qualatative
different categories distinguished into different categories by non
(categorical or
numeric characteristic. gender of professional atheletes
attribute) data
Numerical measurement describing some characteristic of a
Parameter population. Count entire population the number of redlights
working and not in a city
a numerical measurement describing some chacteristic of a
Statistic
sample 60% of 800 bell employees have 401K
, Census Collection of data from every element in a population
Sample Subset of a population
Statistics a collection of methods for planning studies and
experiments, obtaining data, and then organizing, summarizing,
Statistics
presenting, analyzing, interpreting, and drawing conclusions
based on the data
observations (such as measurements, genders, survey responses)
Data
that have been collected
the complete collection of all elements (scores, people,
Population measurements, and so on) to be studied; the collection is
complete in the sense that it includes all subjects to be studied
Census Collection of data from every member of a population
is largely about using sample data to make inferences (or
The subject of statistics generalizations) about an entire population. It is essential to
know and understand the definitions that follow.
a numerical measurement describing some characteristic of a
Parameter
population.
a numerical measurement describing some characteristic of a
Statistic
sample.
numbers representing counts or measurements. Example: The
Quantitative data
weights of supermodels
Qualitative (or can be separated into different categories that are distinguished