| A | B |
| experiment | procedure designed to test a hypothesis under controlled conditions |
| hypothesis | testable idea that leads to scientific investigation |
| variable | factor of interest (something that is changed) |
| observation | piece of information we gather with our senses |
| prediction | logical statement about what will happen if the hypothesis is correct |
| control group | group that does not receive the treatment |
| statistics | collection and classification of data in form of numbers |
| correlation | associations between two or more events |
| data | information scientist gathers (often numerical) |
| experimental group | group receiving the treatment |
| probability | chance something will happen |
| distribution | relative arrangement of the members of a statistical population (Bell curve) |
| mean | the average (adding the characteristics and div by # of individuals) |
| risk | probability of an unwanted outcome |
| sample | group of individuals or events used to represent a population |
| model | represent objects or systems |
| value | principles or standards we find important |
| conceptual model | verbal or graphical explanation how something works (flowchart) |
| decision-making model | conceptual model that provides a process for making decisions |
| mathematical model | one or more equations that represents how a system or process works |