Probability and Statistics Vocabulary

Flashcards for vocabulary terms from lecture notes on probability and statistics.

Population

The entire group about which information is gathered.

Census

Data collected from each member of the population.

Sample

A small portion of the population used when a census is not feasible.

Valid Conclusions

Conclusions that are accurate because the sample is representative of the population.

Rubric

A set of criteria used to assess the quality and content of a task.

Probability

The likelihood that an event will occur.

Bias

When a question influences responses in favor of, or against, the topic of the data collection.

Simple Random Sampling

Every member of the population has an equal chance of being selected.

Self-Selected Sampling

Only members who are interested and volunteer will participate

Systematic or Interval Sampling

Every nth member of the population is selected.

Convenience Sampling

Only members of the population who are convenient to include are selected.

Cluster Sampling

Every member of each randomly chosen group of the population is selected.

Stratified Random Sampling

Some members from each group of the population are randomly selected.