### Summary Statistics #### What is Statistics? **The Field of Statistics** is the practice and study of collecting and analyzing data. **A Summary Statistic** is a fact about or summary of some data. **Type of Statistics:** - #descriptive-statistics describe and summarize data. - #inferential-statistics use samples to make inferences about a larger population. **Types of Data (More than This):** - #numerical (quantitative) - #continuous (Measured) numerical data is measured like speed a car is going. - #discrete (Counted) numerical data is counted like number of dogs. - #categorical (qualitative) - #nominal (unordered) categorical data is measured like country of birth. - #ordinal (ordered) categorical data is measured like a Disagree to Agree survey. Types of data matter because the type indicates what type of summary statistic to use or what visualization make sense. #### Measures of Center #### Measures of Spread **** ### Random Numbers and Probability **** ### More Distributions and the Central Limit Theorem **** ### Correlation and Experimental Design ****