## Data Analytics for Cyber Security Defense

November 10, 2016

Fri, Nov 11

**Data Analytics for Cyber Security**

- Defining Big Data Analytics
- Data types
- Analysis types

**Visualization**- Why use visualization
- See
**patterns** - Enable
**participation**

- See
- Simple Data Visualization for Distributions
- Histograms
- Illustrate the shape of data distribution
- Example: Exam Results (score frequency distribution)
- Example: Solar production by day and by hour
- Demonstrate with real estate data (Google Sheets)

- Boxplots
- What are Boxplots
- Five number graphic summary: 25th, 50th, 75th Percentile + Min and Max value
- Example: Stacking Bar Charts, Histograms and Boxplots
- Example: Boxplot paired with Histogram

- Histograms

- Why use visualization

**Correlation and Simple Regression**- Scatter plots
- Colorado TCAP Scores and % Free-Reduced Lunch
- Gender Wage Gap
- Bubble Charts
- Animated Bubble Chart

- Correlation
- Pearson Correlation Coefficient
- Correlation Coefficient Matrix
- Spurious Correlation
- Correlation does not imply Causation

- Linear Regression
- Simple (or Bivariate) regression
- Linear, Polynomial equation
- R-squared
- Multiple Regression with XL Miner

- Scatter plots

**Probability for Normal Distributions**- Normal (Bell-shaped) Curve
- Standard Normal and Z-Scores
- Standard Normal Distribution
- Mean = 0
- Standard Deviation = 1
- N(0, 1)

- Z-Scores
- Z = (x – mean)/std dev
- Example
- Young women heights (inches)
- N(64.5, 2.5)
- Z-Score for woman 68 inches tall; Z = (68 – 64.5)/2.5 = 1.4
- Z-Score for woman 60 inches tall; Z = (60 – 64.5)/2.5 = -1.8
- Z-table

- Empirical Rule Probabilities- 68-95-99.7
- Normal Curve Calculations with Z-Scores

- Standard Normal Distribution
- Why Normal Distribution is the most important distribution

**Statistical Computing**- Key technologies: R, Python are in, SAS, SPSS, Minitab et al are out
- Python vs R
- Python
- Numpy, Scipy, etc
- PythonAnywhere.com
- Repl.it

- Wrap-up

## 2 Comments

Great class, I really enjoyed and benefited from the time with Justin.

I enjoyed it too, Bill! Thanks for a great session. Best, Justin