Why Statistics

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• The art of decision making choosing a plan of action when faced with uncertainty.
• The quantitative approach to decision making is the essence of Data Science.
• We are just going to refresh a bit of this quantitative approach called Statistics.
• Statistics is part of the art of unraveling the secrets hidden inside data.

“A Data Scientist is one who knows more statistics than a programmer and more programming than a statistician”.

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A data scientists solves problems

• We define a problem statement (By asking the right questions)
• We then collect the right kind of data to perform our analysis
• We try to explore the data to see what it tells us
• We employ various techniques to derive inferences from the data or to predict some answers for the problem statement.
• Finally, we check if our inferences/predictions are fairly accurate (of course by scientific methods!)

Let’s start with the Stats refresher!

Descriptive Statistics 1

CLICK HERE FOR THE WORKSHOP NOTES

CLICK HERE FOR THE EXERCISE

Descriptive Statistics 2

CLICK HERE FOR THE WORKSHOP NOTES

CLICK HERE FOR THE EXERCISE

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