MATH 105 4.1 Key Terms

Question 1

Statistics

Answer 1

The science of collecting, organizing, and interpreting data

Question 2

Data

Answer 2

Contextual facts and numerical info from which conclusions are drawn

Question 3

Data Set

Answer 3

A generic phrase used to refer to the raw collection of facts and numbers that we have about a specific topic of interest for a specific group of individuals

Question 4

Individual (Subject; Case)

Answer 4

One of the “objects” or “entities” to be studied

Question 5

Population

Answer 5

The complete set of individuals of interest

Question 6

Sample

Answer 6

The subset of individuals from the population for which information is actually gathered

Question 7

Sample Size

Answer 7

The number of individuals in the sample

Question 8

Variable

Answer 8

A characteristic that is measured or recorded for one individual; can be qualitative/categorical (gender, race, locality, educational attainment, etc.) or quantitative (age, number of children, and weight, etc.)

Question 9

Distribution

Answer 9

A variable is some presentation of information that shows the values that a variable can take and the frequency (or relative frequency) of those values