# Conditional Probability: Definition & Uses

Instructions:

question 1 of 3

### Amanda has room in her rented limousine to take two of her friends while she celebrates her birthday. Her best friends are Barbara, Samantha, Rachel, and Kim. She chooses names randomly to not hurt anyone's feelings. What are the chances she'll take Rachel and Kim?

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### 2. Paul wants to play quarterback for his football team, but that decision depends on who serves as head coach for a given game. Coach Smith is head coach about 60 percent of the time, and Coach Brown is head coach the other 40 percent. Coach Brown has faith in Paul, so he starts him at quarterback in 80 percent of the games he coaches. Coach Smith, though, isn't so sure, so he starts Paul at quarterback 40 percent of the time. What's the probability of Paul starting as quarterback for the next game?

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Conditional probability in mathematics allows for calculating the chance of an occurrence. This quiz/worksheet will help you assess your understanding of how to calculate it and let you put your skills to the test with practice problems.

## Quiz & Worksheet Goals

In these assessments you'll be tested on practice problems involving:

• Conditional probability
• Dependent events
• Probability
• Conditional probability notation

## Skills Practiced

Practice these valuable skills as you complete these assessments:

• Problem solving - use acquired knowledge to solve conditional probability practice problems
• Knowledge application - use your knowledge to calculate the conditional probability of many events
• Making connections - use understanding of how to use conditional probability notation