MATH 2040 UTAH VALLEY UNIVERSITY STUDY GUIDE | APPLIED STATISTICS PRACTICE
QUESTIONS AND ANSWERS | COMPLETE COURSE REVIEW
Process of statistics - ANS ✔✔Identify research objective, collect information, organize and
summarize, draw a conclusion.
Population - ANS ✔✔The entire group of individuals to be studied.
N - ANS ✔✔The size of the population.
n - ANS ✔✔The size of the sample.
Parameter - ANS ✔✔Numerical summary of a population.
Statistic - ANS ✔✔Numerical summary of a sample.
Descriptive Statistics - ANS ✔✔Describe data through numerical summary, tables, and graphs.
Inferential statistics - ANS ✔✔Use methods that take a result from a sample and extends it to
the population.
Variable - ANS ✔✔Characteristic(s) of individuals within the population.
Qualitative (Categorical) Variables - ANS ✔✔Allow for the classification of individuals based on
some attribute or characteristic.
Quantitative (Numerical) Variables - ANS ✔✔Provide numerical measure of individuals.
, Discrete Variable - ANS ✔✔A quantitative variable that has a finite or countable number of
possible values.
Continuous Variable - ANS ✔✔A quantitative variable that has an infinite number of variables
that are not countable.
Nominal level of measurement - ANS ✔✔The values of the variable are named, labeled, or
categorized. The naming scheme does not allow for the values of the variable to be arranged or
ranked in a specific order.
Ordinal level of measurement - ANS ✔✔Has properties of the nominal level, and the values of
the variable can be ranked in a specific order.
Interval level of measurement - ANS ✔✔Has properties of the ordinal level, and the difference
in the values have meaning. Zero does not mean the absence of a quantity.
Ratio level of measurement - ANS ✔✔Has properties of the interval level, and the ratios of the
values have meaning. Zero means the absence of a quantity.
Random Sampling - ANS ✔✔Process of using chance to select individuals from a population to
be included in the sample.
Simple Random Sample - ANS ✔✔A sample size of n from a population size N is obtained
through SRS if every possible sample size of n has an equally likely chance of occuring.
Stratified Sample - ANS ✔✔Obtained by separating the population into non-overlapping groups
called strata and then obtaining a simple random sample from each stratum. The individuals
within the strata should be homogeneous.
QUESTIONS AND ANSWERS | COMPLETE COURSE REVIEW
Process of statistics - ANS ✔✔Identify research objective, collect information, organize and
summarize, draw a conclusion.
Population - ANS ✔✔The entire group of individuals to be studied.
N - ANS ✔✔The size of the population.
n - ANS ✔✔The size of the sample.
Parameter - ANS ✔✔Numerical summary of a population.
Statistic - ANS ✔✔Numerical summary of a sample.
Descriptive Statistics - ANS ✔✔Describe data through numerical summary, tables, and graphs.
Inferential statistics - ANS ✔✔Use methods that take a result from a sample and extends it to
the population.
Variable - ANS ✔✔Characteristic(s) of individuals within the population.
Qualitative (Categorical) Variables - ANS ✔✔Allow for the classification of individuals based on
some attribute or characteristic.
Quantitative (Numerical) Variables - ANS ✔✔Provide numerical measure of individuals.
, Discrete Variable - ANS ✔✔A quantitative variable that has a finite or countable number of
possible values.
Continuous Variable - ANS ✔✔A quantitative variable that has an infinite number of variables
that are not countable.
Nominal level of measurement - ANS ✔✔The values of the variable are named, labeled, or
categorized. The naming scheme does not allow for the values of the variable to be arranged or
ranked in a specific order.
Ordinal level of measurement - ANS ✔✔Has properties of the nominal level, and the values of
the variable can be ranked in a specific order.
Interval level of measurement - ANS ✔✔Has properties of the ordinal level, and the difference
in the values have meaning. Zero does not mean the absence of a quantity.
Ratio level of measurement - ANS ✔✔Has properties of the interval level, and the ratios of the
values have meaning. Zero means the absence of a quantity.
Random Sampling - ANS ✔✔Process of using chance to select individuals from a population to
be included in the sample.
Simple Random Sample - ANS ✔✔A sample size of n from a population size N is obtained
through SRS if every possible sample size of n has an equally likely chance of occuring.
Stratified Sample - ANS ✔✔Obtained by separating the population into non-overlapping groups
called strata and then obtaining a simple random sample from each stratum. The individuals
within the strata should be homogeneous.
