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10 Cards in this Set

  • Front
  • Back
Statistics
the science of conducting studies to collect, organize, summarize, analyze, and draw conclusions from data.
variable
the characteristic or attribute that can assume different values.
data
are the values that variables can assume.
random variable
are variables whose values are determined by chance.
descriptive statistics
consist of the collection, organization, summarization, and presentation of data.
inferential statistics
consist of generalizing from samples to population, performing estimations and hypothesis testing, determining relationships amoung variable, and making predictions.
population
consist of all subjects (humans or otherwise) that are being studied.
sample
a group of subjects selected from the population
hypothesis testing
a decision-making process for evaluating claims(seeing if true or not) about a population, based on info obtained from samples.
qualitative variable
variable that can be placed into distinct categories, according to some characteristic or attribute.