Chapter 1: Exploring Data

Question 1

individual

Answer 1

objects described by a set of data

eg. high school students

Question 2

variable

Answer 2

any characteristic of an individual

eg. gender

Question 3

categorical variable

Answer 3

groups

eg. gender, race, zip code

Question 4

quantitative variable

Answer 4

can find average

eg. age, height

Question 5

distribution

Answer 5

the pattern of a variable’s variation

ie. even number of men and women but overwhelming majority right-handed

Question 6

frequency table

Answer 6

displays counts

Question 7

relative frequency table

Answer 7

displays percents

Question 8

pie chart

Answer 8

represents each category as a slice

ie. parts of a whole

Question 9

bar graph

Answer 9

represents each category as a bar

Question 10

two-way table

Answer 10

describes two categorical variables

eg. gender AND race

Question 11

marginal distribution

Answer 11

distribution of values of a singular variable from a two-way table
eg. number of total almost no chance out of total total

Question 12

conditional distribution

Answer 12

describes the values among individuals of another variable

eg. men who are almost certain out of men total

Question 13

side-by-side bar graph

Answer 13

eg. income bracket and year

Question 14

association

Answer 14

when specific values of one variable tend to occur in common with specific values of the other

Question 15

dotplot

Answer 15

horizontal axis (a number line)