Unit 1 Flashcards
Consist of information coming from observations, measurements, counts, information, or responses
Data
The science of collecting, organizing, analyzing, and interpreting data in order to make decisions
Statistics
The collection of all outcomes, measurement, or accounts that are of interest
Population
A subset or part of the population
Sample
The branch of statistics that involves using a sample to draw conclusions about a population
Inferential statistics
A numerical description of a population
Parameter
An observed characteristic
a factor that is liable to vary and change
Variable
Consist of attributes, labels, or numerical entries
Qualitative variable
The researcher doesn’t influence responses
To observe and measure characteristics
Does not change outcome
Observational study
Uncounted possible numbers of outcomes, represented by an interval on a number line
Unending decimals
Measured height, weight, temperature
Continuous variable
Numerical description of a sample characteristic
Statistic
The branch of statistics that involves the organization, summarization, and display of data.
Does not draw influences
Descriptive statistics
Consist of numerical measurement or counts
Quantitative variable
Researcher deliberately applies a treatment before observing the responses
Experiment
Finite possible number of outcomes
Money
Number of kids
Discrete variable
