Ch 1

Question 1

descriptive statistics

Answer 1

used to describe a set of data

Question 2

inferential statistics

Answer 2

/

Question 3

population

Answer 3

complete set of events in which you are interested

Question 4

sample

Answer 4

set of actual observations; subset of a population

Question 5

statistics

Answer 5

numerical values summarizing sample data

Question 6

parameters

Answer 6

numerical values summarizing population data

Question 7

random sample

Answer 7

a sample in which each member of the population has an equal chance of inclusion

Question 8

decision tree

Answer 8

graphical representation of decisions involved in the choice of statistical procedures

Question 9

measurement data

Answer 9

aka quantitative data; data obtained by measuring objects of events

Question 10

types of data

Answer 10

• measurement (quantitative)

- categorical (frequency / count)

Question 11

categorical data

Answer 11

aka frequency data, count data; data representing counts of number of observations in each category