Module 1-1 and 1-2

Question 1

What is Statistics?

Answer 1

A way of reasoning along with data collection of tools and methods designed to help us understand the world with the use of data

Question 2

What is Data?

Answer 2

Values without context

Question 3

What is a Population of Interest?

Answer 3

The entire collection of individuals

Question 4

What is a Parameter?

Answer 4

A numerical summary that describes a characteristic of the population

Question 5

What is a Statistic?

Answer 5

A numerical summary that describes a characteristic of the sample

Question 6

What does ȳ mean?

Answer 6

The average of a statistic

Question 7

What does s mean?

Answer 7

The standard deviation (statistic)

Question 8

What does r mean?

Answer 8

Correlation (statistic)

Question 9

What does b mean?

Answer 9

Regression coefficient (statistic)

Question 10

What does p̂ mean?

Answer 10

Proportion (statistic)

Question 11

What does μ mean?

Answer 11

Parameter

Question 12

What does σ mean?

Answer 12

Standard deviation of a population

Question 13

What does ρ mean?

Answer 13

Correlation of a population

Question 14

What does β mean?

Answer 14

Regression coefficient of a population

Question 15

What does P mean?

Answer 15

The proportion of a population

Question 16

What does Who mean?

Answer 16

Who did we collect the data from

Question 17

Who can you collect data from?

Answer 17

Subjects/Participants
Populations
Samples
Respondents
Experimental units

Question 18

What are Respondents?

Answer 18

Individuals who answer a survey

Question 19

What are Experimental units?

Answer 19

Animals, Plants, and inanimate objects

Question 20

What is the what in the 5 w’s?

Answer 20

What characteristic or variable are you monitoring

Question 21

What is the Why in the 5 w’s?

Answer 21

Why are you doing this? What is your reason for collecting data?

Question 22

What is the When and Where in the 5 w’s?

Answer 22

Knowing when and where the data are collected, can give us some nice information about the context

Question 23

What is the How?

Answer 23

How is the data being collected

Question 24

What are Variables?

Answer 24

Variables are characteristics recorded about each individual

Question 25

What are the types of Variables?

Answer 25

Categorical (Qualitative) | Numerical (Quantitative)

Question 26

What do Categorical (Qualitative) variable do?

Answer 26

Places a subject into one or several groups or categories

Question 27

What are the two types of Categorical Variables?

Answer 27

Nominal | Ordinal

Question 28

What are Nominal Variables?

Answer 28

Categorical Variables with no order

Question 29

What are Ordinal Variables?

Answer 29

Categorical Variables with order

Question 30

What are the two types of Numerical (Quantitative) variables?

Answer 30

Discrete | Continuous

Question 31

What are Discrete variables?

Answer 31

When they can only take on discrete values

Question 32

What are Continuous variables?

Answer 32

When they can take on any value in a given interval

Question 33

What kind of variable is something like student ID?

Answer 33

A categorical variable with one individual in each category