Probability

• The probability of an event is the likelihood it will happen.
• It's always between 0 and 1 including those.
• If I roll a six sided dice, the probability I will roll below 7 is 1, above 7 0, and 3 or below is .5.
• In the real world, you often have to make assumptions to come up with probabilities.
• However, if you have solid probabilities, you can make very solid systems.
• In a deck of cards, what's the probability I will draw an ace?
• If I've already drawn one, what is the probability I'll draw another?
• What's the probability that Arsenal will win the Premiere League this year?