Basics of Statistics Flashcards
is the science of collection, presentation,
analysis, and reasonable interpretation
Statistics
Data that can be measured by numbers.
Quantitative
Individuals are selected based on non-random criteria, and every individual has a chance of being included.
Nonprobability sampling methods
Every member of the population has a chance of being selected.
Probability sampling methods
is the specific group that you will collect data from
sample
is the entire group that you want to draw
conclusions about
population
This scale has certain characteristics but doesn’t have any form of numerical meaning.
nominal scale
defines data that is placed in a specific order. While each value is ranked, there’s no information that specifies what differentiates the categories from each other
ordinal scale
contains properties of nominal and ordered data, but the difference between data points can be quantified.
interval scale
The data is nominal and defined by an identity, can be classified in order, contains intervals and can be broken down into exact value.
Ratio scale
Used for Naming Variables in No Particular Order
Nominal Scale
Used to describe the order of values
Ordinal
Used for naming variables
Nominal
Have measurable intervals
Ratio
With known differences between variables
Interval
Numbers that can be broken down
Continuous
Whole numbers that can’t be broken down
Discrete
Summary measures and graphs
Descriptive
Estimation and Test of Hypothesis
Inferential
Statistics describes a numeric set of data by its
Center, Variability, Shape
Statistics describe a categorical set of data by
Frequency, percentage, or proportion
