Math terms

3. The rate at which something is changing
5. A trend where points may lie in the general direction of a line
7. Finding the most efficient use of available materials within given constraints
11. The length of time over which a loan is paid off
14. An angle between 0 and 90
15. Any sort of three numbers that separate a sorted data set into four equal parts
16. A set of data that gives measures of two attributes for each item in a sample
17. a figure made up of two or more
19. The most frequently occurring value in a set of data

1. Sampling in which the data are organized into representative groups and one group is chosen as a sample
2. sampling in which data are grouped and selected randomly
4. Measures the average set of numbers
6. Intersecting at right angles (90)
8. Arranged in numerical order and is the middle number
9. A line that passes as close as possible to a set of plotted points
10. the process of identifying a line of best fit for a set of data
11. The angle between the horizontal and sightline to a point below eye level
12. To estimate a value between two known values
13. The angle between the horizontal and sightline to a point above eye level
18. Tells approximately what percent of the data are less than a particular data value