Statistics Vocab

6. describes qualities or characteristics
7. having two modes
8. a numerical characteristic of a population
11. a finite or infinite collection of items under consideration
12. an official count or survery of a population
18. researchers collect members of the population at a regular interval
20. the most frequently occuring number found in a set of numbers
21. the average of a set of numbers
22. the difference between the lowest and highest values in a set of numbers
23. describing features of a data set by generating summaries about data samples

1. a portion drawn from a population
2. the middle value of a set of numbers
3. divide a population into clusters and randomly select these clusters as your sample
4. the science of collecting, organizing, displaying, and analyzing data
5. computer experiments that involve creating data by pseudo-random sampling from known probability distributions
9. data expressing a certain quantity, amount, or range
10. researchers collect market research data from a conveniently available pool of people
13. investigate the cause and effect relationship between two variables
14. researchers divide subjects into subgroups called "strata" based on similar characteristics
15. make predictions or inferences based on data
16. the selection of a subset of individuals
17. facts and statistcis collected together for reference or analysis
19. an investigation of a given population by means of collecting data from a sample of that population