Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

0 Views

Probability and Likelihood Concepts

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is probability a measure of?

Possibility of an event happening

Likelihood of an event happening (correct)

Certainty of outcomes

Frequency of events occurring

How is probability expressed?

Using words like impossible or likely

As a whole number

By counting the total number of outcomes

As a ratio of desired outcomes to possible outcomes (correct)

Which step is NOT involved in finding probability?

Identify possible outcomes

Assign a probability scale (correct)

Identify desired outcomes

Express the ratio of desired to possible outcomes

How is likelihood described?

Through words like impossible, unlikely, equally likely, likely, or certain Signup and view all the answers

What does probability help determine and describe?

The likelihood of events occurring Signup and view all the answers

What is the range of possible probability values?

0 to 1 Signup and view all the answers

Which of the following is not a step in finding the probability of an event?

Determine the likelihood of the event Signup and view all the answers

If an event has a $50%$ likelihood, how would it be described on the likelihood scale?

Equally likely Signup and view all the answers

Which of the following is the best description of probability?

A measure of how likely an event is to happen Signup and view all the answers

If a spinner has 4 equal sections of different colors, what is the probability of spinning a specific color?

$\frac{1}{4}$ Signup and view all the answers

Study Notes

Probability is a measure of how likely an event is to happen, ranging from 0 to 1.
Probability is expressed as a ratio of desired outcomes to possible outcomes, written as a fraction or decimal.
Three steps to find probability: identify possible outcomes, identify desired outcomes, express the ratio of desired to possible outcomes.
Likelihood is the chance of an event happening, described using words like impossible, unlikely, equally likely, likely, or certain.
Likelihood scale: Impossible (0%), Equally likely (50%), Likely (75%), Certain (100%).
Practice example: Determining the likelihood of outcomes when spinning a spinner with different colored sections.
Practice example: Describing the likelihood of outcomes when picking marbles from a jar with pink, green, and blue marbles.
Probability helps determine and describe the likelihood of events occurring, using specific language to convey different levels of likelihood.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Explore the fundamental concepts of probability and likelihood, including how to determine the likelihood of events happening and expressing probabilities as ratios. Practice examples involve spinning a spinner with different colored sections and picking marbles from a jar with multiple colors.