1. Normal Distribution
http://www.mathsisfun.com/data/standard-normal-distribution.html
2. LogNormalDistribution
http://www.princeton.edu/~achaney/tmve/wiki100k/docs/Log-normal_distribution.html
3. Mean, Median and Mode
1. Normal Distribution
http://www.mathsisfun.com/data/standard-normal-distribution.html
2. LogNormalDistribution
http://www.princeton.edu/~achaney/tmve/wiki100k/docs/Log-normal_distribution.html
3. Mean, Median and Mode