What are Data

Study of statistics lies on which 2 concepts

Variation and data

Variation

When things differ from one another

Variation is needed for

Data to exist

Data

Observations made by you or someone else

Observations

Measurements for categories

What can be datafied

Anything that can be stored on a computer

Common ways to store data on the internet

ApI and html

Data analysis

Creating summaries of data and explaining what the summaries tell about the real world.

Data cycle

Process of posing a question, collecting data, analyzing data, and interpreting data

Data are grouped into a collection

Sample and data set

Population

Data sets are effectively the population because of their large size

Data set

Contains all the info about everyone or everything relating to whatever variable is being studied

Quantities

Numerical variables

Qualities

Categories

Numerical variable

Numerical variable of object of interest

Categorical variables

Categories objects of interest fall in

Stacked format

Numerical-categorical

Unstacked format

Categorical-categorical