Chapter 1
Chapter 1 Basic Math
Course: Ged Test Prep
Subject: Mathematics
Chapter: Chapter 2 Geometry
Probability of events
Probability is a measure of the likelihood that a specific event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.
Probability can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
The probability of an event A can be denoted as P(A) and is calculated as the number of ways event A can occur divided by the total number of possible outcomes.
The sum of all probabilities for all possible outcomes in an event space is equal to 1.
Examples
Rolling a fair six-sided die:
Flipping a fair coin:
Drawing a hearts card from a standard deck of 52 cards:
- Selecting a female student from a class: