Unit 1 Vocabulary

Question 1

Statistics

Answer 1

The science of collecting, analyzing, and drawing conclusions from data

Question 2

population

Answer 2

the entire collection of individuals or objects about which information is desired

Question 3

census

Answer 3

performed to gather information about the entire population

Question 4

sample

Answer 4

a subset of the population randomly selected for study in a defined manners

Question 5

descriptive statistics

Answer 5

the methods of organizing and summarizing data (graphing, averaging, and etc.)

Question 6

inferential statistics

Answer 6

involves making generalizations from a sample to a population

Question 7

variable

Answer 7

any characteristic that may change from one individual to another

Question 8

data

Answer 8

the actual characteristics you collected from your sample or population

Question 9

categorical variable AKA qualitative

Answer 9

data sorted into categories that have no meaningful numerical value

Question 10

numerical variable AKA quantitative

Answer 10

observations or measurements that take on meaningful numerical values; makes sense to average the numbers

Question 11

continuous numerical variable

Answer 11

data can take on any value in the domain of the variable; usually measurement of something

Question 12

univariate

Answer 12

data that describes one characteristics of the population

Question 13

bivariate

Answer 13

data that describes two characteristics of the population

Question 14

multivariate

Answer 14

data that describes 3 or more characteristics of the population

Question 15

discrete numerical variable

Answer 15

data that can only take on specific values in the domain of the variable; usually counts of items