stats Flashcards
definitions and examples
variable
actual numerical description of sample data, aka just a number
population
science of gathering, describing, and analyzing data
cenus
a study in which data are obtained from every member of the population
data
a count, measurements, observations about a specific variable in a population in order for it to studied.
parameter
a numerical description of a population description
sample
is a subset of population, from which data are collected, aka the part of data in population that will be studied.
sample statistic
numerical description of sample characteristics
descriptive statistics
gathers, sorts, summarizes, displays, data,
**note: states things are as facts, no assumption are made
inferential statistics
using descriptive statistics to estimate population parameter
**notes interprets the data, used in parameter