• Numbers are mostly reckless estimates
  • Random variables
  • Male life expectancy in UK distribution
  • What’s the probability that a US man is 6’ or more?
  • What is a probability distribution?
  • Populations vs samples
  • Sampling the heights of 10 random American men
  • Sampling the heights of 100,000 random American men
  • Discrete probability distributions
  • Roll two dice and histogram the results
  • Poisson distribution
  • Binary probability distributions
  • Probability distribution for cars/household in the UK
  • Binomial distribution
  • Geometric distribution
  • Negative Binomial distribution
  • Continuous probability distributions
  • Uniform distribution
  • Triangular distribution
  • Normal distribution
  • Properties of the normal distribution
  • Distribution of IQ scores
  • Different means (same standard deviation)
  • Different standard deviations (same mean)
  • z-distribution
  • 68–95–99.7 (empirical) rule
  • Quantile-Quantile (Q-Q) plot
  • Q-Q plot of non-normal data
  • Common probability distributions “family tree”