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