Statistics play an important role in data science. Descriptive statistics describe and summarize key characteristics of data through measures like mean, median and standard deviation. Predictive statistics are used to develop models that predict future outcomes from patterns found in existing data. Prescriptive statistics go beyond prediction to recommend optimal decisions and actions based on predictive models and business goals.

1. Statistics in Data Science
1. Descriptive Statistics

2. Statistics v/s Machine Learning
Problem Data Data
What to
do with it

3. 3 types of Process
• Descriptive Statistics
• Predictive Statistics
• Prescriptive Statistics