WGU D582 EXAMINATION TEST 2026 Q&A
WITH CORRECT ANSWERS GRADED A+
◍ Continuous Variable. Answer: Quantitative variables that have a
infinite number of possible values, such as weights, heights,
temperatures, money
EX: The weight of babies being born in a hospital in a given year
◍ Nominal Scale. Answer: Categorical(qualitative), no specific type
of order, such as gender, college major, or political affiliation
◍ Ordinal Scale. Answer: Categorical (qualitative), in certain order
such as satisfied-dissatisfied such as satisfaction surveys
◍ Interval Scale. Answer: Numerical(quantitative), evenly spaced
between increments, no true zero point, such as temperature on the
Celsius scale
◍ Ratio Scale. Answer: Numerical (quantitative), interval scale, with
a zero point that represents the absence of a variable such as the
amount of money in a checking account
◍ Binary. Answer: 0 & 1 such as computer programming
,◍ Integers. Answer: Whole numbers, no fraction, no decimal.
◍ Real Numbers. Answer: Can contain fractions/decimals
◍ Quality Measurements: 2 properties. Answer: -reproduced with
high level of precision
- high level accuracy
◍ Population. Answer: The entire group or collection that a
researcher is attempting to study
◍ Sample. Answer: a manageable subset of the population
◍ Statistic. Answer: a numeric data summary that describes a
SAMPLE
◍ Parameter. Answer: a numeric data summary that describes a
POPULATION
◍ Representative Sample. Answer: A sample that closely matches the
population from which it was selected
◍ Biased (unrepresentative) sample. Answer: A subset of the
population that does not have the characteristics typical of the target
population.
, ◍ Random Sampling. Answer: a sample that fairly represents a
population because each member has an equal chance of inclusion
◍ Simple Random Sampling. Answer: a method of sampling in which
every member of the population has an equal probability of being
chosen
◍ Stratified Random Sampling. Answer: a method of sampling in
which members of the population are placed in subgroups or strata,
after which each subgroup is randomly sampled in a way that is
proportional to the subgroup's size relative to the population
◍ Convenience Sampling. Answer: Anyone willing and available
◍ Frequency. Answer: How often, qualitative variables
◍ Bar Charts. Answer: Summarizes and organizes qualitative
(categorical) data that uses a nominal or ordinal scare of measurement
◍ Mistakes with bar charts. Answer: -3D is less clear than 2D
-use plain bars
-accurate proportions
-set baseline value to ZERO
WITH CORRECT ANSWERS GRADED A+
◍ Continuous Variable. Answer: Quantitative variables that have a
infinite number of possible values, such as weights, heights,
temperatures, money
EX: The weight of babies being born in a hospital in a given year
◍ Nominal Scale. Answer: Categorical(qualitative), no specific type
of order, such as gender, college major, or political affiliation
◍ Ordinal Scale. Answer: Categorical (qualitative), in certain order
such as satisfied-dissatisfied such as satisfaction surveys
◍ Interval Scale. Answer: Numerical(quantitative), evenly spaced
between increments, no true zero point, such as temperature on the
Celsius scale
◍ Ratio Scale. Answer: Numerical (quantitative), interval scale, with
a zero point that represents the absence of a variable such as the
amount of money in a checking account
◍ Binary. Answer: 0 & 1 such as computer programming
,◍ Integers. Answer: Whole numbers, no fraction, no decimal.
◍ Real Numbers. Answer: Can contain fractions/decimals
◍ Quality Measurements: 2 properties. Answer: -reproduced with
high level of precision
- high level accuracy
◍ Population. Answer: The entire group or collection that a
researcher is attempting to study
◍ Sample. Answer: a manageable subset of the population
◍ Statistic. Answer: a numeric data summary that describes a
SAMPLE
◍ Parameter. Answer: a numeric data summary that describes a
POPULATION
◍ Representative Sample. Answer: A sample that closely matches the
population from which it was selected
◍ Biased (unrepresentative) sample. Answer: A subset of the
population that does not have the characteristics typical of the target
population.
, ◍ Random Sampling. Answer: a sample that fairly represents a
population because each member has an equal chance of inclusion
◍ Simple Random Sampling. Answer: a method of sampling in which
every member of the population has an equal probability of being
chosen
◍ Stratified Random Sampling. Answer: a method of sampling in
which members of the population are placed in subgroups or strata,
after which each subgroup is randomly sampled in a way that is
proportional to the subgroup's size relative to the population
◍ Convenience Sampling. Answer: Anyone willing and available
◍ Frequency. Answer: How often, qualitative variables
◍ Bar Charts. Answer: Summarizes and organizes qualitative
(categorical) data that uses a nominal or ordinal scare of measurement
◍ Mistakes with bar charts. Answer: -3D is less clear than 2D
-use plain bars
-accurate proportions
-set baseline value to ZERO
