Chapter 2 Key Terms

Question 1

Statistics

Answer 1

The collection and classification of data that are in the form of numbers

Question 2

Mean

Answer 2

Average of given values

Question 3

Distribution

Answer 3

Relative arrangement of the members of a statistical population.

Question 4

Probability

Answer 4

The chance that something will happen

Question 5

Sample

Answer 5

a group of individuals or events selected to represent your population

Question 6

Risk

Answer 6

Probability of unwanted outcome

Question 7

Model

Answer 7

Representations of objects

Question 8

Conceptual Model

Answer 8

A verbal or graphical explanation of how a system works or is organized

Question 9

Mathematical Model

Answer 9

One or more equations that represent how a system or process works

Question 10

Values

Answer 10

Principles or standards that we consider important

Question 11

Decision Making Models

Answer 11

Conceptual model that provides a systematic process for making decisions

Question 12

Observation

Answer 12

A piece of information you gather using your senses

Question 13

Hypothesis

Answer 13

Testable idea or explanation that leads to a scientific investigation

Question 14

Prediction

Answer 14

A logical statement about what will happen if the hypothesis is supported

Question 15

Experiment

Answer 15

A procedure designed to test a hypothesis under control conditions

Question 16

Variable

Answer 16

The factor of intrest

Question 17

Experimental Group

Answer 17

The group that receives the experimental treatment

Question 18

Control Group

Answer 18

The group that does not recieve the experimental treatment

Question 19

Data

Answer 19

The information scientists gather that is often numerical

Question 20

Correlation

Answer 20

Association between two or more events