Overview of Statistics
Branches of Statistics
(Descriptive/Inferential)
Levels of Measurement
(Nominal, Ordinal, Interval, Ratio)
Types of Data
Types of sampling
50
Information coming from observations, counts, measurements, or responses.
What is Data?
50
The collection, analysis, and presentation of data.
What is Descriptive Statistics?
50

Categorized using names, labels, or qualities.

What is Nominal Level of Measurement?

50
Attributes, labels, or numerical entries.
What is Qualitative?
50

eparating population into homogeneous groups called strata and obtaining a random sample from each strata

Stratified Sampling

100
Science of collecting, organizing, analyzing, and interpreting data in order to make decisions.
What is Statistics?
100
Drawing conclusion from the information from descriptive statistics.
What is Inferential Statistics?
100

Categorized using order or ranking.

What is Ordinal Level of Measurements?

100
Numerical measurements or counts.
What is Quantitative?
100

method of sampling every kth individual

Systematic Sampling

150
All the members in a group.
What is Population?
150

Determining how a population behaves derived from a sample. (Testing hypotheses)

What is an example of Inferential Statistics?

150

Are ordered and has equal distances between data entries. 0 represents position on scale, not an actual 0.

What is Interval Level of Measurement?

150
Quantitative measurement that cannot be counted like an average.
What is Continuous?
150

Generic term for selecting a sample randomly

Simple Random Sample

200
A subset, or part, of a population.
What is Sample?
200
The action of a physician studying turbulence in a laboratory.
What is an example of Descriptive Statistics?
200

A kind of Interval with meaningful 0 point.

What is Ratio Level of Measurements?

200
Can be counted like the number of wheels on a car.
What is Discrete?
200

A way of sampling by separating the population into groups, then randomly selecting some of the groups, and then select all members of the selected groups

Cluster Sample

250

A collection of data from every member of the population

What is census?

250

You survey 10 psychology students who all say that they love statistics. You infer that all/most of psychology students love statistics.

What is an example of Inferential Statistics?

250

ex. Course Grades of A,B, C, D, F

What is Ordinal Level of Measurements?

250
The measurement of how fast a car was going.
What is an example of Quantitative Data?
250

Use data that is very easy to get

Convenience Sampling

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