Math crossword

2. Sample is based on a rule
6. every member of a sample is asked questions
10. a subset of a population
12. for the x-value and is the number of standard deviations the x-value lies above or bellow the mean
13. When the results are highly unlikely to occur the hypothesis is probably false
15. study observes without controlling
16. Uses a model to reproduce the conditions of a process.
18. sample those who are convenient
20. a claim about a characteristic of a population
21. symmetric about the mean
22. a numerical description of a population
23. the normal distribution with mean 0 and standard deviation 1.

1. Group people and then pick from a group
3. a bell shaped curve
4. a function that gives the probability of each possible value of a random variable.
5. is representative of the population
7. a variable who's value is determined by the outcomes of a probability experiment.
8. an error that results in a misrepresentation of a population
9. the collection of all data that you want information about.
11. People volunteer for the sample
14. imposes a treatment
17. Group people and pick one whole group
19. a numerical representation of a sample