math Flashcards
is the application of statistical
principles to questions and problems in
medicine, public health, and biology.
Biostatistics
The term statistics came from the Latin phrase
“ratio status”
“ratio status” which means study of
practical politics or the statesman’s ar
term statistik was used, a German term defined as
“the
political science of several countries”
the collection of things or
observational units under consideration
universe
is a characteristic observed or
measured on every unit of the universe
variable
the set of all possible
values of the variable
population
is a subset of the population
sample
– descriptive measure
of the population
parameter
process of collecting
a sample from a
population
sampling
– descriptive measure
of the sample
statistic
are the column headings – “subject”, “age”,
“sex”, “bloodtype
Variables
It is the variable that the experimenter
changes or controls and is assumed to have
a direct effect on the dependent variable.
Independent Variables
It is the variable being tested and measured
in an experiment, and is ‘dependent’ on the
independent variable
Dependent Variables
It is the most basic method of drawing a probability
sample which assigns equal probabilities of selection
to each possible sample
SIMPLE RANDOM SAMPLING
