MATH
A.P. Statistics – Population and Samples (Chapter Six) Key Words

# A.P. Statistics – Population and Samples (Chapter Six) Key Words

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A.P. Statistics – Population and Samples (Chapter Six) Key Words Population In a statistical study, the population is the entire group of individuals about which we want information. Sample The part of the population from which we actually collect information. We use information from a sample to draw conclusions about the entire population. Census A study that attempts to collect data from every individual in the population. Sample Design Plan created to capture a sample of the population. Voluntary Response Sample People decide whether to join a sample based on an open invitation; particularly prone to large bias. Convenience Sample A sample selected by taking the members of the population that are easiest to reach; particularly prone to large bias. Bias The design of a statistical study shows bias if it systematically favors certain outcomes. Simple Random Sample (SRS) The basic random sampling method. An SRS gives every possible sample of a given size the same chance to be chosen. We often choose an SRS by labeling the members of the population

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