11-2 Probability
Objective To find the probability of an event using theoretical, experimental, and simulation methods
Lesson Vocabulary
- experimental probability
- simulation
- sample space
- equally likely outcomes
- theoretical probability
Probability measures how likely it is for an event to occur.
Essential Understanding The probability of an impossible event is 0 (or 0%). The probability of a certain event is 1 (or 100%). Otherwise, the probability of an event is a number between 0 and 1 (or a percent between 0% and 100%).
When you gather data from observations, you can calculate an experimental probability. Each observation is an experiment or a trial.
Take Note Key Concept: Experimental Probability
experimental probability of event:
Problem 1 Finding Experimental Probability
Gridded Response Of the 60 vehicles in a teachers’ parking lot today, 15 are pickup trucks. What is the experimental probability that a vehicle in the lot is a pickup truck?
Think
What is a trial? What is an event?
A trial is a vehicle parking in the lot. An event is the vehicle being a truck.
The probability that a vehicle in the lot is a pickup truck is 0.25.
✓ Got It?
- A softball player got a hit in 20 of her last 50 times at bat. What is the experimental probability that she will get a hit in her next at bat?
Table of Contents
- 5-1 Polynomial Functions
- 5-2 Polynomials, Linear Factors, and Zeros
- 5-3 Solving Polynomial Equations
- 5-4 Dividing Polynomials
- 5-5 Theorems About Roots of Polynomial Equations
- 5-6 The Fundamental Theorem of Algebra
- 5-7 The Binomial Theorem
- 5-8 Polynomial Models in the Real World
- 5-9 Transforming Polynomial Functions