Pre-Algebra Chapter 6 Vocabulary

3. found out by the ratio of a given length on a drawing model to the length of the real object
4. ratio or rate isn't constant
7. paid on initial principal on interest earned from the past
9. tells of the percent an amount that has increased or decreased from the original amount
12. ratio that compares a number to the number 100
14. amount by which a regular price of a item is reduced
15. equations of the form y=kx and k is the constant ratio
18. an amount increases is percent of change
19. a scale is written in it's simplest form
20. representative of larger population, selected by random or without preference, large enough to give accurate data are three ways to conduct this sample
22. amount of money earned or paid for the use of money
24. two quantities that have different kinds of units
26. comparison by division of two quantities
27. sample where each item or person in a population is as possible to be chosen as any other item or person
28. another word for scale drawing

1. sample that isn't representative of the population
2. sample which involves only only the ones who want to partake in sampling
5. two quantities that have a constant rate or ratio
6. one ratio compares the part of a quantity to the whole of a quantity as a fraction
8. used to show an object that is too small or to big to built or drawn at it's actual size
10. determines if two ratios make a proportion
11. two ratios are both equal
13. sample where the population is divided similar, not-overlapping groups a simple random sample is selected from each of the groups
16. people or items are selected based on a certain time or time interval
17. equivalent form of a percent proportion where the percent is in decimal form
18. large group
20. rate that's simplified to have a denominator of 1
21. randomly selected smaller group
23. percent of change becomes negative when the amount decreases
25. sample that includes members of the population that are easy to be accessed