Chapter 2- Stat

Question 1

variable

Answer 1

a characteristic of an individual that changes or varies from individual to individual

Question 2

qualitative variable(categorical variables)

Answer 2

classify individuals into categories

Question 3

quantitative variable

Answer 3

values that represent counts or measurements

Question 4

discrete variable

Answer 4

can only take a finite number of possible values or countable number of possible values

Question 5

continuous variable

Answer 5

can take infinite possible numbers of values in a given interval

Question 6

nominal level of measurement

Answer 6

simplest level of measurement, applies to variables that can be described solely by names, labels, or categories

Question 7

ordinal level of measurement

Answer 7

variables described with raking order scheme

Question 8

interval level of measurement

Answer 8

are meaningful but ratios are not

Question 9

ratio level of measurment

Answer 9

when both intervals and ratios are meaningful