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Statistics > Module 1-1 and 1-2 > Flashcards

Module 1-1 and 1-2 Flashcards

1
Q

What is Statistics?

A

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

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2
Q

What is Data?

A

Values without context

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3
Q

What is a Population of Interest?

A

The entire collection of individuals

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4
Q

What is a Parameter?

A

A numerical summary that describes a characteristic of the population

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5
Q

What is a Statistic?

A

A numerical summary that describes a characteristic of the sample

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6
Q

What does ȳ mean?

A

The average of a statistic

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7
Q

What does s mean?

A

The standard deviation (statistic)

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8
Q

What does r mean?

A

Correlation (statistic)

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9
Q

What does b mean?

A

Regression coefficient (statistic)

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10
Q

What does p̂ mean?

A

Proportion (statistic)

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11
Q

What does μ mean?

A

Parameter

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12
Q

What does σ mean?

A

Standard deviation of a population

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13
Q

What does ρ mean?

A

Correlation of a population

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14
Q

What does β mean?

A

Regression coefficient of a population

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15
Q

What does P mean?

A

The proportion of a population

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16
Q

What does Who mean?

A

Who did we collect the data from

17
Q

Who can you collect data from?

A 
Subjects/Participants
Populations
Samples
Respondents
Experimental units
18
Q

What are Respondents?

A

Individuals who answer a survey

19
Q

What are Experimental units?

A

Animals, Plants, and inanimate objects

20
Q

What is the what in the 5 w’s?

A

What characteristic or variable are you monitoring

21
Q

What is the Why in the 5 w’s?

A

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

22
Q

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

A

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

23
Q

What is the How?

A

How is the data being collected

24
Q

What are Variables?

A

Variables are characteristics recorded about each individual

25
Q

What are the types of Variables?

A

Categorical (Qualitative)

Numerical (Quantitative)

26
Q

What do Categorical (Qualitative) variable do?

A

Places a subject into one or several groups or categories

27
Q

What are the two types of Categorical Variables?

A

Nominal

Ordinal

28
Q

What are Nominal Variables?

A

Categorical Variables with no order

29
Q

What are Ordinal Variables?

A

Categorical Variables with order

30
Q

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

A

Discrete

Continuous

31
Q

What are Discrete variables?

A

When they can only take on discrete values

32
Q

What are Continuous variables?

A

When they can take on any value in a given interval

33
Q

What kind of variable is something like student ID?

A

A categorical variable with one individual in each category

Statistics (7 decks)

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