AP Statistics Unit 3 Vocabulary

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Across
  1. 2. a sample that consists of the entire population
  2. 5. refers to the tendency of a process that tends to overestimate or underestimate the value of a population parameter
  3. 8. a numerical characteristic of a population
  4. 11. ___ sampling: choosing individuals that are easiest to reach
  5. 13. ___ sampling: individuals choose themselves by responding to a survey or willingly participating in an experiment
  6. 17. in a statistical study, the entire group of individuals we want information about
  7. 18. ___ random sample: members from a larger population are selected according to a random starting point but with a fixed, periodic interval
  8. 19. a specific condition applied to the subjects of an experiment
  9. 21. individuals are observed and variables of interest are measured without any attempt to influence responses
  10. 23. a small part or quantity intended to show what the whole is like
Down
  1. 1. the object to which a treatment is randomly assigned, when these are humans, they are called subjects
  2. 3. a numerical characteristic of a sample
  3. 4. occurs when some part of the population is not sampled at all or at a smaller proportion than seen in the population
  4. 6. occurs when some subjects won’t respond or participate
  5. 7. specific value of an explanatory variable in an experiment
  6. 9. occurs when there is a systematic pattern of inaccurate responses to a survey question, may be due to question wording
  7. 10. a treatment is deliberately imposed on individuals in order to observe their responses
  8. 12. ___ random sample: members of the population are grouped then members from each group are randomly selected
  9. 14. the use of enough subjects to reduce chance variation
  10. 15. ___ sample: members of the population are grouped then a set number of groups are randomly selected
  11. 16. experimental design principal that helps avoid confounding and reduces variability in the response variable
  12. 20. explanatory variable in an experiment that is manipulated and may cause a change in the response variable.
  13. 22. ___ random sample: sample chosen in such a way that every group of n individuals in the population has an equal chance to be selected as the sample