elvis.ipynb

Kernel: Python 3

Think Bayes

This notebook presents example code and exercise solutions for Think Bayes.

Copyright 2018 Allen B. Downey

MIT License: https://opensource.org/licenses/MIT

# Configure Jupyter so figures appear in the notebook
%matplotlib inline

# Configure Jupyter to display the assigned value after an assignment
%config InteractiveShell.ast_node_interactivity='last_expr_or_assign'

# import classes from thinkbayes2
from thinkbayes2 import Hist, Pmf, Suite

Exercise: This exercise is from one of my favorite books, David MacKay's "Information Theory, Inference, and Learning Algorithms":

Elvis Presley had a twin brother who died at birth. What is the probability that Elvis was an identical twin?"

To answer this one, you need some background information: According to the Wikipedia article on twins: "Twins are estimated to be approximately 1.9% of the world population, with monozygotic twins making up 0.2% of the total---and 8% of all twins.''

# Solution goes here

# Solution goes here