SNHU IHP 340
statistics (n) - ANS-the science of collecting, describing, and analyzing data.
cases or units, - ANS-the subjects/objects that we obtain information about.
variable - ANS-any characteristic that is recorded for each case.
categorical variable - ANS-divides the cases into groups.
quantitative variable - ANS-measures or records a numerical quantity for each case.
explanatory variable - ANS-explains the response variable
response variable - ANS-responds to the explanatory variable
population - ANS-includes all individuals or objects of interest
sample - ANS-subset of a population from which data samples are collected
statistical inference - ANS-the process of using data from a sample to gain information
about the population
sampling bias - ANS-occurs when the method of selecting a sample causes the sample
to differ from the population in some relevant way.
simple random sample - ANS-each unit of the population has an equal chance of being
selected regardless of the other units chosen for the sample.
bias - ANS-exists when the method of collecting data causes the sample data to
inaccurately reflect the population.
associated variables - ANS-values of one variable tend to be related to the values of the
other variable.
causally associated variables - ANS-changing the value of one variable influences the
value of the other variable.
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