ExperimentExperimental Outcome (Possibilities) Toss a CoinHead, Tail Select a part for inspectionDefective, Non-Defective Conduct a SalesPurchase, No Purchase Roll a die1, 2, 3, 4, 5, 6 Play a football gameWin, Lose, Tie

Example: PIZZA The probability that a customer selects a pizza with mushrooms or pepperoni is 0.43 and customer selects pizza only mushrooms is If the probability that s/he selects only pepperoni is 0.17, find the probability of customer selecting both items.

Example: WIC The worldwide Insurance Company (WIC) found that 53% of the residents had homeowners’ insurance (H) with WIC. Of these clients 27% also had automobile insurance (A). If a resident is selected at random, what is the probability that resident has both H and A?

Probability – the chance that an uncertain event will occur (always between 0 and 1) Impossible Event – an event that has no chance of occurring (probability = 0) Certain Event – an event that is sure to occur (probability = 1)