I'm Not So Sure Anymore
Definitions and Examples.
Probability - The study of chance or the likelihood of an event happening. Examples. More examples.
Experimental probability - The ratio of the number of times the event occurs to the total number of trials. Examples.
Examples of interactive applets for experimental probability: Adjustable spinner, Coin toss, Roll dice, Number generator
Sample space - The set of all possible outcomes for an activity or experiment. Examples. More examples. Creating a tree diagram examples.
Event - The subset of the sample space. Examples.
Basic counting principle - Determines the possible outcomes when there are two or more events. Examples. More examples. More examples.
Theoretical probability - The likeliness of an event happening based on all the possible outcomes. The ratio for the probability of an event occurring is the number of favorable outcomes to the number of possible outcomes. Examples.
Examples of probability, outcomes and sample space.
Combinations - The different arrangements of a group of items where order does not matter. Combination calculator.
Expected value - The mean value of an experiment. Expected value can be calculated by adding the products of the value of each event and its corresponding theoretical probability. Example. More examples.
Fair game - A game in which the expected value equals the cost of playing.
Odds - The ratio that compares the number of favorable outcomes of an event to the number of unfavorable outcomes. Examples.