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Data Science - Intro to Statistics


Introduction to Statistics

Statistics is the science of analyzing data.

When we have created a model for prediction, we must assess the prediction's reliability.

After all, what is a prediction worth, if we cannot rely on it?


Descriptive Statistics

We will first cover some basic descriptive statistics.

Descriptive statistics summarizes important features of a data set such as:

  • Count
  • Sum
  • Standard Deviation
  • Percentile
  • Average
  • Etc..

It is a good starting point to become familiar with the data.

We can use the describe() function in Python to summarize the data:

Example

print (full_health_data.describe())
Try it Yourself »

Output:

Stat Describe

Do you see anything interesting here?