Lesson 7.6: Find Probabilities of Compound Events

​Lesson 7.6

​Find Probabilities of Compound Events

Some text here about the topic of discussion

Key Concept:

Finding the probability of compound events is just like finding the theoretical probability of single events. We need to make a ratio for the number of favorable outcomes to the number of total outcomes.

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P(compound event) = # of Favorable Outcomes

Total Number of Outcomes​

Subject | Subject

Some text here about the topic of discussion

​Imagine you have a spinner with 5 equal sides and you are flipping a coin. Make a table to show the sample space of this compound event, and give the probability your coin will land heads up and you will spin a 1, 2, 3 or 4.

Multiple Choice

You are spinning a 5 sided spinner and flipping a coin. What is the probability your coin will land on tails and you will spin a number greater than 3?

• 1/10

• 2/5

• 2/10

• 1/5

​You are flipping 3 fair coins. Write the sample space for all of the outcomes of this compound event and find the probability that at least two coins will land on heads.

Multiple Choice

You are flipping 3 fair coins. What is the probability that all of the coins will land on the same side?

• 1/8

• 2/8

• 1/4

• 1/2

​Each week, a clothing store gives away a shirt. The shirts vary by sleeve type (Long, Short, No Sleeve) and color (Grey, Blue, Pink). Draw a tree diagram to represent the sample space. What is the probability that the free shirt will have either long or short sleeves and be either pink or blue?

Multiple Choice

Using the same scenario from the previous problem, what is the probability you will get a short sleeve shirt that is grey or pink?

• 2/9

• 1/9

• 2/3

• 1/3

​Conclusion: Write two complete sentences about what you learned.