Chapter 1-1 Descriptive and Inferential Statistics

Question 1

Variable

Answer 1

A characteristic or attribute that can assume different values

Question 2

Data

Answer 2

The values (measurements or observations) that the variables can assume

Question 3

Random Variables

Answer 3

Variables whose values are determined by chance

Question 4

Data Set

Answer 4

A collection of data values

Question 5

Data Value or Datum

Answer 5

Each value in the data set

Question 6

Descriptive Statistics

Answer 6

Consists of the collection, organization, summarization and presentation of data

Question 7

Inferential Statistics

Answer 7

Consists of generalizing from samples to populations, performing estimations and hypothesis test, determining relationships among variables and making predictions

Question 8

Probability

Answer 8

The chance of an event occurring

Question 9

Population

Answer 9

Consists of all subjects (human or otherwise) that are being studied

Question 10

Sample

Answer 10

A group of subjects selected from a population

Question 11

Hypothesis Testing

Answer 11

A decision-making process for evaluating claims about a population, based on information obtained from samples

Question 12

Statistics

Answer 12

The science of conducting studies to collect, organize, summarize, analyze, and draw conclusions from data