exam 1 Flashcards
statistics
parameter
population
sample
qualitative data
data that consists of attributes, labels, or nonumerical entries
quantitative data
data consisting of numerical measurements or counts
discrete data
the data values are quantitative and the number of values is finite or countable (no fractions or decimals)
continuous data
the data with infinitely many possible quantitative values is continuous or not countable
nominal level of measurement
qualitative data only, that can be categorized using names, labels, or qualities, and no mathematical computations can be made
ordinal level of measurement
qualitative or quantitative data that can be arranged in order or ranked, and the different between data entries does not matter
interval level of measurement
quantitative data that can be ordered, and the differences between data entries is meaningful. zero also represents a position on a scale, instead of implying “none”
ratio level of measurement
(quantitative) ranked, evenly spaced, and has natural zero (meaning zero = nothing)