data generating process (DGP)
The process that causes variation in the world; when the DGP goes on for a long time, you end up with a distribution that we can start to call a population.
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data
Data are numbers that represent something about the world; the result of sampling and measurement.
data frame
Data frame is an R object. It stores data in rows and columns.
tidy data
Tidy data is a way of organizing data into rectangular tables, with rows and columns, in which each column is a variable, each row is an observation, and each type of observational unit it kept in a different table.
random process
Random process means that all possible outcomes have a predictable chance of coming up; whereas we often think that random means unpredictable, random processes, the way statisticians think of them, are actually highly predictable, governed by a ...
Not Connecting to Server
If you hit the "Connect" button for the R coding exercise windows but it will not connect to the server, please note the following: This error should be rare and should not persist for more than a few minutes. Please do not continue to hit "Connect" ...