criterion probability
The probability that defines whether a sample is too unlikely to have occurred by chance and thus is unrepresentative of a particular population.
critical value
The value of the sample statistic that marks the edge of the region of rejection in a sampling distribution; values that fall beyond it lie in the region of rejection
dependent event
Events for which the probability of one is influence by the occurrence of the other
independent event
Events for which the probability of one is not influenced by the occurrence of the other
inferential statistics
Procedures for determining whether sample data represent a particular relationship in the population
probability
A mathematical statement indicating the likelihood that an event will occur when a particular population is randomly sampled
probability distribution
The probability of every event in a population, derived from the relative frequency of every event in that population
random sampling
A method of selecting samples so that all members of the population have the same chance of being selected for a sample
region of rejection
That portion of a sampling distribution containing values considered too unlikely to occur by chance, found in the tail or tails of the distribution
representative sample
A sample whose characteristics accurately reflect those of the population
sampling error
The difference, due to random chance, between a sample statistic and the population parameter it represents
sampling with replacement
A sampling procedure in which previously selected individuals or events are returned to the population before any additional samples are selected
sampling without replacement
A sampling procedure in which previously selected individuals or events are not returned to the population before additional samples are selected
