Match the phrases in column a and column b
column a
1. general or nonspecific observation
2. educated guess
3. when two variables change in the same direction, one remaining larger than the other by the same factor
4. "measured" observation
5. standard, reference data, or experiment
6. a presently accepted explanation of how something happens
7. a statement that explains what something does under the same conditions
8. a curve drawn to average the data's deviations

column b

qualitative
control
direct relationship
quantitative
hypothesis
law
best fit curve
theory