Probability of Compound Events
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Subject Area: Mathematics (B.E.S.T.) | Grade Level: 7
Lesson Length: 15 minutes or less
Keywords/Tags: Probability
Lesson Description: In this lesson, students will be introduced to the concept of calculating probability of compound events. This will involve creating fractions, converting to percentages, and constructing probability models.

  • MA.7.DP.2.1 Determine the sample space for a simple experiment.
  • MA.7.DP.2.2 Given the probability of a chance event, interpret the likelihood of it occurring. Compare the probabilities of chance events.
  • MA.7.DP.2.3 Find the theoretical probability of an event related to a simple experiment.
  • MA.7.DP.2.4 Use a simulation of a simple experiment to find experimental probabilities and compare them to theoretical probabilities.
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Video : Probability of Compound Events
Instructions: Please watch the following video as many times as needed before starting to go through other lesson pages. Understanding the content of the video is very important since the lesson activities will be all about this video content.
Description: This video will show you how to calculate probability of compound events by taking you through several word problem examples.
Quiz : Check for Understanding: Probability of Compound Events
Instructions: Please complete this quiz by choosing the correct answer for each question. You can take this quiz as many times needed.
Question #1

How many different events must there be to make a compound event?

Question #2
There are 6 outcomes on a die, and two outcomes on a coin, which means that the amount of outcomes for these two as a compound event is 8.
Question #3

Carly is simultaneously spinning a spinner with four options, and rolling a die. How many possible outcomes will there be for this compound event?

Question #4

Marco is flipping a coin, and spinning a spinner with five colors: red, orange, yellow, blue, and green. What is the probability that Marco will land on heads and yellow?

Question #5
Selestine is picking a number between one and 10, and flipping a coin, and Junior is supposed to predict her number, and which side the coin will land. Junior claims he has a one in twenty chance of predicting correctly. Is he right?
Question #6
Carrissa claims that if she rolls a die, and chooses a vowel out of the alphabet, there is a 1 in 30 chance of landing on a 3, and choosing an A. Is she correct?
Question #7
What is the probability of a coin landing on heads, and a die landing on 4, in percent?
Question #8

Jordan says that his compound event, choosing a card that has Hearts out of a deck of 52, and landing on heads on a coin, has a probability of 1/8. What is this probability written as a decimal rounded to the nearest hundredth?

Question #9
What is the probability that Susan will roll an even number on a die, and land on tails on a coin?
Question #10
How many possible outcomes will there be when using a spinner wheel with seven colors and a die?
Description: This quiz will test your knowledge of calculating probability of compound events.
Resources : Additional Resources
Instructions: Please see additional external resources below. Feel free visit each link to learn more about this lesson.
Compound Events: Find the Number of Outcomes
This game tests your skills determining how many possible outcomes that there may be in events.
Probability of Compound Events Quizizz
This 10-question Quizizz allows you to practice probability of compound events.
Khan Academy Probabilities of Compound Events
This Khan academy resource allows you to practice calculating probabilities of compound events.
Description: These resources are to be used to practice these skills.