Week 1

Question 1

Variable

Answer 1

Takes one or more value

EXAMPLE: Eye Color

Question 2

Constant

Answer 2

Only has one value

EXAMPLE: Found in formulas

Question 3

Discrete

Answer 3

Whole numbers and the space between is meaningless

EXAMPLE: Number of children

Question 4

Continuous

Answer 4

Any range of values the space between is meaningful

EXAMPLE: Income

Question 5

Dichotomous

Answer 5

Only two possible vales

EXAMPLE: Yes/No True/False

Question 6

Ordinal

Answer 6

Numbers ranked in an ordered system or series a relative amount QUANTITATIVE
EXAMPLE: ranking actors

Question 7

Interval

Answer 7

Numbers amount equal meaningful space between numbers Zero is meaningless
QUANTITATIVE
EXAMPLE: Temperature

Question 8

Ratio

Answer 8

Has a meaningful zero

EXAMPLE: Money or Age

Question 9

Central Tendency

Answer 9

is a central or typical value for a probability distribution

Question 10

Central Tendency

Nominal

Answer 10

Uses Mode

Question 11

Central Tendency

Ordinal

Answer 11

Uses Median

Question 12

Interval/Ratio

Answer 12

Use Mean

Question 13

Mean

Answer 13

Mathematical Center

Question 14

Parameters

Answer 14

Descriptive Statistics of a population

Question 15

Skews

Answer 15

Means no symmetry pos or neg depends where the tale is

Question 16

Variability

Nominal

Answer 16

Uses range

Question 17

Variance

Answer 17

Average squared distance data point are from mean